4
0
1
0
2
0
1
0
2
0
1
0
3
0
4
0
2
0
1
0
1
0
0
0
4
0
5
0
3
0
3
0
0
0
1
0
3
0
0
0
0
0
2
0
2
0
2
0
1
0
2
0
1
0
1
0
3
0
1
0
1
0
0
0
2
0
4
0
3
0
1
0
1
0
1
0
0
1
1
0
3
0
1
0
2
0
1
0
1
0
2
0
1
0
1
0
1
0
0
0
6
0
12
3
0
0
1
0
1
0
17
0
1
0
1
0
3
0
2
0
1
0
0
0
4
0
1
0
2
0
1
0
1
0
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0
0
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0
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0
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0
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0
1
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1
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0
0
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8
1
1
0
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0
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0
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0
0
0
0
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1
0
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0
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0
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0
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0
0
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0
1
0
1
0
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0
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0
31
1
1
1
2
0
1
0
9
0
2
0
1
0
0
0
1
0
5
0
7
0
1
0
9
1
2
0
1
0
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0
1
0
55
1
3
0
1
0
0
0
1
0
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0
1
0
2
0
3
0
1
0
7
0
2
0
6
0
1
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0
4
0
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0
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7
0
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0
1
0
5
0
2
0
4
0
1
0
1
0
5
0
2
0
3
0
5
0
2
0