Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.8955363 2.038388 0.0129347 2 1 0.4103174 2.659131 2.510802 3 1 1.78969 0.5389615 0.472858 4 1 1.869764 0.8670039 2.357059 Masses 1 28.0855