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