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