20 83
1 3
1 4
1 8
1 9
1 11
1 15
2 3
2 6
2 8
2 9
2 11
2 15
2 16
2 17
2 18
2 19
3 6
3 9
3 12
3 14
3 15
3 17
4 6
4 7
4 9
4 10
4 17
4 18
4 19
5 7
5 11
5 15
5 19
6 10
6 11
6 12
6 15
6 16
6 18
6 20
7 11
7 13
7 14
7 15
7 19
7 20
8 9
8 11
8 12
8 13
8 15
8 16
8 18
8 19
9 11
9 12
9 13
9 15
9 20
10 13
10 17
11 12
11 13
11 15
11 16
11 19
12 15
12 16
12 18
12 19
12 20
13 14
13 17
13 20
14 16
14 18
14 19
16 17
16 20
17 19
17 20
18 19
18 20
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1 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 1 1 1 0 
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1 1 1 0 1 1 1 1 1 0 1 1 0 0 0 0 0 0 0 0 
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0 1 0 1 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 0 
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1 13 15 12 14 13 6 14 5 13 7 15 3 14 2 15 11 10 12 9 11 8 10 5 9 2 11 6 12 4 13 3 12 1 9 8 7 5 8 4 10 3 8 2 7 1 6 5 4 3 5 2 3 1