1.8m

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0
1
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0
1
m
0
1
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0
1
m
0
1
m
0
1
m
0
1
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0
1
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0
1
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0
1
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0
1
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0
1
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0
2
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0
1
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0
1
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0
1
m f
0
1
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0
1
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0
1
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0
1
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0
1
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0
1
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0
1