30
24 18 26 28 25 21 20 27 30 23 16 29 17 22 19 
20 23 22 18 30 16 17 28 25 26 24 27 19 21 29 
28 19 17 30 29 27 22 23 20 24 16 26 21 18 25 
16 30 18 21 26 23 28 22 24 20 19 27 25 29 17 
19 30 24 20 16 26 28 21 23 22 29 27 25 17 18 
30 25 26 19 16 17 29 27 18 22 24 28 23 21 20 
23 22 16 30 29 26 19 27 28 24 25 18 21 20 17 
28 27 16 20 21 19 26 30 22 24 17 29 25 18 23 
28 18 26 22 20 16 25 30 21 29 27 19 17 23 24 
28 29 27 19 17 22 20 23 25 18 30 24 16 26 21 
17 24 23 29 27 20 28 22 25 18 16 26 30 21 19 
22 28 27 20 30 25 16 18 23 17 19 21 26 29 24 
27 25 23 18 22 17 16 20 29 30 28 26 19 24 21 
18 23 30 27 25 16 24 17 28 22 29 20 21 19 26 
28 30 21 19 24 20 26 23 29 22 16 27 25 17 18 
8 4 3 9 12 14 13 2 5 6 11 1 7 15 10 
13 5 3 15 6 2 7 9 12 1 10 14 8 4 11 
13 4 9 10 3 2 12 14 7 8 11 6 5 15 1 
5 11 1 8 2 4 13 15 3 14 12 9 10 6 7 
5 12 14 2 7 9 10 8 13 3 1 4 15 11 6 
6 5 10 13 3 4 11 1 8 2 7 14 15 12 9 
14 10 6 15 9 5 13 11 8 3 2 1 12 7 4 
11 9 2 7 5 8 6 4 3 12 1 15 13 14 10 
9 10 5 11 2 8 4 15 12 14 3 1 6 13 7 
6 2 7 5 4 14 13 1 9 8 10 15 3 11 12 
7 5 12 8 3 10 13 15 2 9 14 1 11 6 4 
11 5 2 14 7 12 6 8 13 15 4 3 1 9 10 
6 4 7 9 10 1 11 5 15 13 12 2 8 14 3 
10 7 14 3 12 11 2 13 15 5 4 9 1 8 6 
3 4 2 5 9 15 11 8 6 10 14 13 12 7 1 
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forbidden 1 25
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