Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.87635 3.056157 2.56331 2 1 2.630116 3.676368 0.1513233 3 1 3.86528 2.701686 2.148066 4 1 4.109526 5.456314 1.985988 Masses 1 28.0855