Enter a species  (e.g. Al, Fe): Ni
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: SNAP_LiHuChen_2018_Ni__MO_913991514986_000
Enter hexagonal lattice constants 'a' and 'c' (m): 2.496511540471857e-10, 4.085348373096226e-10