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