am1 Precise


C
C 1.35 1                   1   
C 1.35 1 120.0 1           2 1 
C 1.35 1 120.0 1   0.0 1   3 2 1  
C 1.35 1 120.0 1   0.0 1   4 3 2
C 1.35 1 120.0 1   0.0 1   5 4 3
H 1.00 1 120.0 1 180.0 1   1 2 3
H 1.00 1 120.0 1 180.0 1   2 3 4 
H 1.00 1 120.0 1 180.0 1   3 4 5
H 1.00 1 120.0 1 180.0 1   4 5 6
H 1.00 1 120.0 1 180.0 1   5 6 1
H 1.00 1 120.0 1 180.0 1   6 1 2