Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.350826 0.4418416 2.50309 2 1 1.033244 1.643774 1.864586 3 1 1.591632 0.5864069 0.4139953 4 1 2.819906 0.5589855 2.733529 Masses 1 28.0855