Cluster test driver 3 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.637918 0.2719817 2.063314 2 1 1.356699 2.504591 1.788302 3 1 2.914077 0.8951645 1.849671 Masses 1 28.0855