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