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