Cluster test driver 3 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.007331 1.349739 1.100215 2 1 2.236429 1.614712 3.470303 3 1 2.669673 3.381603 1.900983 Masses 1 28.0855