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