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