Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.921009 2.879251 0.1735145 2 1 2.172715 1.111915 1.596886 3 1 1.395537 4.105171 1.902805 4 1 3.265675 2.92087 2.206487 Masses 1 28.0855