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