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