Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.545864 6.091838 1.499613 2 1 2.179305 3.563192 1.435059 3 1 4.130428 2.365833 1.412571 4 1 3.615446 4.837513 1.97252 Masses 1 28.0855