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