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