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