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A 27x27 square is a multiple of 3 (and the size is no odd number squared), but still panmagic 27x27 squares
exist. See below a method of construction (do not fill in the digits 1 up to 27, but fill in the digits 0 up to 26,
because it is easier to calculate with).
Produce first 1/3 of the first row (27 / 3 = 9 digits). Take for example the digits 0 up to 8 in the same sequence.
Then produce 1/3 of the second row with the digits 9 up to 17 and 1/3 of the third row with the digits 18 up to
26. The sum of each (1/9) column must be ([0 t/m 26] / 9 = ) 39.
1/3 of 1st/2nd/3rd row (sum 1/9 column is 39)
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0
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1
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2
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8
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17
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15
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16
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10
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11
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9
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14
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12
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13
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22
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23
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21
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26
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24
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25
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19
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20
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18
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39
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39
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39
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39
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39
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39
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39
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39
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39
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Then finish the first three rows by using the same 1/3 rows in a different sequence of (top down ) 2-3-1 and
3-1-2.
First three rows of the 1st square
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0
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1
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8
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17
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10
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9
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14
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12
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22
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23
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21
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26
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24
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25
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19
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20
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18
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17
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15
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16
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10
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11
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9
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14
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13
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22
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23
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21
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26
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25
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19
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20
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18
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0
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8
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22
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26
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25
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19
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20
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18
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0
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1
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7
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8
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17
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15
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16
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10
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11
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9
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14
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12
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13
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Copy the first three rows to the bottom until the square has been filled completely. The 1st square consist of
row coordinates.
1st square with the row coordinates (take a digit [x 1])
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0
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1
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9
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26
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25
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19
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20
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18
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17
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15
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16
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10
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11
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9
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14
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12
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13
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22
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23
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21
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26
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24
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25
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19
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20
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18
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0
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1
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7
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8
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22
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26
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25
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20
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18
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0
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1
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8
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17
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9
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14
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0
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1
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8
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17
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9
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14
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13
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22
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21
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26
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25
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19
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20
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17
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15
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16
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10
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11
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9
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14
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13
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22
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23
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21
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26
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24
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25
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19
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20
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18
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0
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1
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8
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22
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26
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25
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20
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18
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0
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1
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17
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9
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14
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26
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9
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26
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0
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26
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0
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26
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26
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0
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8
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22
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26
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25
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18
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0
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9
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26
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25
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0
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0
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26
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10
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9
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26
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9
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9
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26
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25
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19
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0
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8
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22
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26
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25
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19
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20
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18
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0
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1
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5
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6
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8
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17
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10
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9
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14
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12
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13
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0
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1
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8
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17
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10
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9
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14
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13
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22
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21
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26
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25
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19
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20
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17
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15
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16
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10
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11
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9
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14
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12
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13
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22
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23
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21
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26
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24
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25
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19
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20
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18
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0
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1
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2
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3
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4
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5
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6
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7
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8
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22
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23
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21
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26
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24
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25
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19
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20
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18
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0
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1
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3
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4
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5
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6
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7
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8
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17
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15
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16
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10
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11
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9
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14
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12
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13
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0
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1
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3
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5
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6
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7
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8
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17
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16
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10
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11
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9
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14
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12
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13
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22
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23
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21
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26
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24
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25
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19
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20
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18
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17
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15
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16
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10
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11
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9
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14
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12
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13
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22
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23
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21
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26
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24
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25
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19
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20
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18
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0
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1
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2
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3
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4
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5
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6
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7
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8
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22
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23
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21
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26
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24
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25
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19
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20
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18
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0
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1
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2
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3
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4
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5
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6
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7
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8
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17
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15
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16
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10
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11
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9
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14
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12
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13
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Produce the 2nd square with the column coordinates by rotating the 1st square by a quarter turn to the right and
by mirroring (verticaly).
2nd square with the column coordinates (take a digit x 27 + 1)
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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1
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15
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23
|
1
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15
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23
|
1
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15
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23
|
1
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15
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23
|
1
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15
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23
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1
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15
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23
|
1
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15
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23
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1
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15
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23
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1
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15
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23
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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24
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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6
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14
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19
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6
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14
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19
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6
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14
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19
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6
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14
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19
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6
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14
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19
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6
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14
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19
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6
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14
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19
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6
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14
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19
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6
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14
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19
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7
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12
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20
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7
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12
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20
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7
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12
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20
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7
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12
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20
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7
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12
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20
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7
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12
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20
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7
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12
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20
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7
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12
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20
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7
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12
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20
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8
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13
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18
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8
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13
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18
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8
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13
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18
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8
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13
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18
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8
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13
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18
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8
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13
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18
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8
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13
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18
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8
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13
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18
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8
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13
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18
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17
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22
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0
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17
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22
|
0
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17
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22
|
0
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17
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22
|
0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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17
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22
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0
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15
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23
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1
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15
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23
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1
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15
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23
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1
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15
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23
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1
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15
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23
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1
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15
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23
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1
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15
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23
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1
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15
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23
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1
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15
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23
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1
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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16
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21
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2
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10
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26
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3
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10
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26
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3
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10
|
26
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3
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10
|
26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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10
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26
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3
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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11
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4
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11
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24
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4
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11
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24
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4
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11
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24
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4
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9
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25
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5
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9
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25
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5
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9
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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9
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25
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5
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14
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19
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6
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14
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| |