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