Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 3.089476 2.842372 2.086496 2 1 5.601196 2.528242 2.896237 3 1 3.884312 0.6907176 1.701618 4 1 4.215674 4.038258 3.881982 Masses 1 28.0855