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