Enter a species  (e.g. Al, Fe): Ar
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: LJ_Shifted_Bernardes_1958MedCutoff_Ar__MO_126566794224_004
Enter hexagonal lattice constants 'a' and 'c' (m): 3.711661823728253e-10, 6.061239246128129e-10