2
1
2
2
2
0
2
0
6
0
20
2
2
2
2
0
1
2
1
2
1
0
2
0
2
1
2
0
2
2
2
0
2
2
0
0
0
2
0
0
0
2
7
0
2
2
2
0
2
0
0
2
2
0
0
2
4
0
0
0
2
0
0
2
2
0
2
2
0
2
0
2
0
0
7
0
0
2
0
0
2
0
1
2
0
2
0
2
0
1
2
0
7
0
0
0
0
2
0
2
0
0
1
2
1
2
2
2
0
1
0
0
0
2
1
4
2
0
0
0
0
0
1
2
7
2
1
0
0
0
1
2
0
4
2
0
6
1
5
1
0
0
7
0
0
2
0
0
1
1
2
0
0
0
2
2
2
2
2
0
2
5
0
0
2
2
2
5
0
0
2
2
1
2
1
0
2
2
0
2
10
0
2
2
2
0
4
0
1
0
1
1
1
3
0
2
2
0
0
0
2
2
4
0
0
2
2
1
0
2
0
2
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1
2
2
0
2
0
1
1
4
0
0
1
0
2
0
0
2
2
2
3
0
2
0
0
0
0
0
1
2
0
2
2
0
2
2
2
0
2
0
2
0
2
0
0
2
2
4
0
0
0
2
2
2
2
0
2
2
1
1
4
1
4
5
0
2
0
1
0
0
0
0
2
0
2
2
