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