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