0 0 0

 leap-generated prep residue
BBB.res
BBB  INT     0
CHANGE   NOMIT DU   BEG 
   0.00000
   1   DUMM  DU    M      0.000000  0.000000  0.000000  0.0
   2   DUMM  DU    M      1.000000  0.000000  0.000000  0.0
   3   DUMM  DU    M      1.000000  1.000000  0.000000  0.0
   4   C3    CT    M      1.457903  2.274217  1.161130    0.018900
   5   C5    CT    3      -0.076756  2.402336  1.158824    0.005100
   6   H7    HC    E      -0.525940  1.424910  1.308057    0.000000
   7   H8    HC    E      -0.403924  2.867132  0.233448    0.000000
   8   H9    HC    E      -0.394329  3.013820  1.998247    0.000000
   9   C2    C     B      2.017487  3.691555  1.100758    0.564800
   10  H1    H1    E      1.653923  4.421095  2.149174    0.000000
   11  O2    O     E      2.716786  4.118869  0.237924    -0.593900
   12  C4    CT    M      1.800759  1.698874  2.538974    0.005100
   13  H4    HC    E      1.364999  0.709603  2.643148    0.000000
   14  H5    HC    E      1.471928  2.388552  3.306504    0.000000


IMPROPER
 C3   O2   C2   H1  

DONE
STOP