Cluster test driver 3 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.2235578 2.284309 1.944342 2 1 1.755933 1.185471 0.9627962 3 1 1.892494 0.2304713 2.994897 Masses 1 28.0855