Cluster test driver 3 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.989621 1.349744 0.9316094 2 1 1.582934 2.779396 2.700878 3 1 3.740634 1.762489 1.907741 Masses 1 28.0855