Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.5633243 0.587944 2.601837 2 1 0.1058126 2.560527 1.172559 3 1 2.499208 0.3877255 2.706466 4 1 2.270099 2.422201 2.805782 Masses 1 28.0855