Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.534514 2.228148 2.279478 2 1 2.568469 4.258609 2.123082 3 1 4.573888 5.069598 2.661577 4 1 4.270042 3.378559 1.121613 Masses 1 28.0855