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