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