Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.714734 1.466262 2.616829 2 1 1.672695 3.586506 2.191402 3 1 5.072274 0.9269389 2.177539 4 1 4.025413 3.317035 2.158848 Masses 1 28.0855