20
19 16 11 20 15 13 17 12 18 14 
17 12 11 19 18 15 16 20 13 14 
18 20 19 14 12 11 15 17 16 13 
11 12 13 20 15 19 14 17 18 16 
15 18 17 19 13 11 14 12 16 20 
13 11 15 17 20 12 16 14 18 19 
18 17 11 12 20 15 16 14 19 13 
13 11 14 20 16 19 15 17 12 18 
12 16 20 11 13 15 14 18 17 19 
19 17 16 20 15 14 13 18 12 11 
5 4 1 2 6 10 3 9 7 8 
2 9 6 8 4 10 5 1 7 3 
9 1 7 8 4 2 6 10 5 3 
2 3 7 9 1 6 8 4 5 10 
3 7 5 10 6 4 2 1 9 8 
4 8 9 2 5 1 7 3 10 6 
4 3 1 6 5 10 7 2 9 8 
4 9 3 10 6 5 7 2 8 1 
4 10 9 5 7 8 1 6 3 2 
8 7 6 10 3 4 2 1 5 9 
forbidden 1 13
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forbidden 1 16
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forbidden 2 15
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forbidden 3 11
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forbidden 3 20
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forbidden 7 15
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