7
9
8
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9
6
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7
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0
9
7
0
8
6
7
6
9
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6
0
8
6
8
8
6
6
8
6
6
0
7
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7
6
9
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0
8
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6
6
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0
6
0
8
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0
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0
0
7
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0
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6
0
8
7
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9
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0
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0
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6
0
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6
7
6
0
7
0
9
9
7
6
8
6
7
7
7
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6
0