Enter a species  (e.g. Al, Fe): Si
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: MEAM_LAMMPS_LenoskySadighAlonso_2000_Si__MO_533426548156_000
Enter hexagonal lattice constants 'a' and 'c' (m): 3.481921442852207e-10, 2.632472109189196e-10