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