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