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