12
charge = 0
 C 0.941538 -0.218915 0.263822
 C 2.127095 0.229113 -0.154467
 C 2.808300 1.333925 0.404514
 C 3.426289 2.272932 0.851915
 C 4.107543 3.377787 1.410746
 C 5.292420 3.826658 0.991441
 H 0.474003 -1.072977 -0.210104
 H 0.415088 0.254565 1.083797
 H 2.626068 -0.271899 -0.980716
 H 3.609162 3.878119 2.237763
 H 5.818235 3.353925 0.170628
 H 5.759957 4.680778 1.465261