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