4  3  0  0  0  0  0  0  0  0999 V2000
   15.2600  -17.0100    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
   16.4724  -17.7100    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   17.6849  -17.0100    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   18.8973  -17.7100    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  3  0     0  0
  2  3  1  0     0  0
  3  4  2  0     0  0
M  END