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