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ret: 0         st:-1 flags:1  ts: 1.894167
ret:-EOF
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ret: 0         st:-1 flags:0  ts: 2.576668
ret:-EOF
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ret:-EOF
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ret: 0         st:-1 flags:0  ts: 2.153336
ret:-EOF
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ret:-EOF
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ret:-EOF
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ret:-EOF
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ret:-EOF
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ret:-EOF
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ret:-EOF
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ret:-EOF
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ret:-EOF
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