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