Enter a species  (e.g. Al, Fe): Mg
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: MEAM_LAMMPS_KimJeonLee_2015_MgCa__MO_611309973581_000
Enter hexagonal lattice constants 'a' and 'c' (m): 3.958009719539722e-10, 6.405130575327589e-10