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