Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.498135 2.481711 1.187983 2 1 2.675773 3.880836 2.786174 3 1 3.481377 1.983179 1.905231 4 1 5.086442 3.961768 1.927974 Masses 1 28.0855