Thank you very much for answering to my previous question, Axel.
I could solve it!
Now I got "segmentation fault" when I add Dihedral information.
I tried with just one dihedral types and dihedral and checked the
dihedral_coeff style again, but it seems it still doesn't work...
Would you tell me which part of input script I should check?
Following is my input script and data file.
Thank you very much.