Enter a species  (e.g. Al, Fe): Si
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: MEAM_LAMMPS_HuangDongLiu_2018_Si__MO_050147023220_000
Enter hexagonal lattice constants 'a' and 'c' (m): 3.001867920341686e-10, 4.864714667047505e-10