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