20

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C 1.77801 0.48064 -0.16006
C 1.35551 -0.82618 -0.39810
C -0.00472 -1.14791 -0.34753
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H -4.56888 -1.22608 0.99217
H -4.73397 -2.63447 -0.08562
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H -1.24366 1.92284 0.40582
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H 2.08648 -1.59828 -0.62444
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