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