Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.6853579 1.38516 2.167247 2 1 2.540934 0.807992 2.62106 3 1 2.939018 2.435595 0.7846409 4 1 2.909365 2.687518 2.904649 Masses 1 28.0855