Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.4200245 0.9720887 1.368459 2 1 0.2399871 2.852693 0.2124444 3 1 1.085003 2.535414 2.951163 4 1 2.377598 1.18625 1.814895 Masses 1 28.0855