4
0
5
0
4
0
7
0
8
0
1
0
6
0
3
0
5
0
3
0
9
0
5
0
4
0
1
0
3
0
4
0
3
0
1
0
9
0
9
0
6
0
3
0
3
0
5
0
9
0
9
0
8
0
6
0
3
0
3
0
3
0
1
0
7
0
4
0
2
0
7
0
3
0
8
0
7
0
2
0
6
0
9
0
5
0
7
0
9
0
6
0
3
0
2
0
3
0
2
0
Number of function calls: 0
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