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