Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.556971 2.552645 1.444238 2 1 1.346745 4.036168 2.632189 3 1 4.72284 2.761792 1.695012 4 1 3.352579 4.496526 1.366389 Masses 1 28.0855