Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.504182 0.6046597 2.321872 2 1 1.745959 3.100925 2.68757 3 1 3.896834 1.31316 2.432517 4 1 4.079685 3.860896 1.604541 Masses 1 28.0855