Enter a species  (e.g. Al, Fe): Si
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: SNAP_ZuoChenLi_2019quadratic_Si__MO_721469752060_000
Enter hexagonal lattice constants 'a' and 'c' (m): 2.37621384492817e-10, 5.458907823256911e-10