Enter a species  (e.g. Al, Fe): Si
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: Sim_LAMMPS_MEAM_CuiGaoCui_2012_LiSi__SM_562938628131_000
Enter hexagonal lattice constants 'a' and 'c' (m): 2.799449938034241e-10, 4.540830331044007e-10