Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.254281 5.296227 1.418577 2 1 1.750413 3.136093 1.98753 3 1 3.34497 1.45321 1.881533 4 1 3.803004 3.670054 2.106009 Masses 1 28.0855