18
 comment:c
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C -1.3715320 -1.2575130 -0.2046110
C 0.0917980 -1.8061330 0.2781680
C 1.1729341 -1.0868270 -0.4742610
C 1.2015870 0.2463480 -0.4122880
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H -2.1352091 -1.7040280 0.4431610
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H -1.5552100 -1.6237251 -1.2207890
H -1.6152240 0.7435350 -1.1183389
H 0.1699680 -1.6011410 1.3546540
H 0.2061700 0.5690180 1.4495910
H 1.8683430 0.8438320 -1.0329680
N 0.3663700 2.3731439 0.4684300
H 0.4010140 2.7674270 -0.4679960
H -0.4074750 2.8224461 0.9488820