Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.992977 1.520628 1.322916 2 1 2.351443 2.977576 3.35114 3 1 0.8368319 3.514349 1.69894 4 1 2.887807 3.844369 0.5466761999999999 Masses 1 28.0855