18
charge = 0
 C 2.183154 1.601724 -0.263887
 C 2.685057 0.233214 0.184334
 C 3.042938 -0.654360 -0.961952
 C 4.241117 -1.182473 -1.182146
 C 4.603558 -2.055729 -2.337957
 C 5.727157 -1.472367 -3.188157
 H 1.896271 2.217476 0.591852
 H 1.308802 1.506621 -0.913539
 H 2.954309 2.135826 -0.823940
 H 1.903881 -0.249609 0.784916
 H 3.553465 0.348583 0.840318
 H 2.241763 -0.866227 -1.671581
 H 5.044358 -0.964120 -0.476831
 H 3.716830 -2.228618 -2.955677
 H 4.918029 -3.038165 -1.963820
 H 5.431424 -0.513843 -3.621028
 H 5.995525 -2.146252 -4.005225
 H 6.625673 -1.301401 -2.588971