Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.5577694 2.945013 2.286605 2 1 2.630246 0.191498 2.174801 3 1 2.389079 2.171655 0.2590592 4 1 2.979224 2.829603 2.740156 Masses 1 28.0855