Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.255333 1.27162 2.732919 2 1 0.1563082 2.037757 0.9195406 3 1 2.732822 1.199342 1.101381 4 1 2.723495 2.772071 2.173764 Masses 1 28.0855