Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.407318 2.912531 0.4915679 2 1 2.588763 3.80351 2.492541 3 1 3.156708 1.860824 1.786936 4 1 3.58937 3.640178 0.244631 Masses 1 28.0855