Cluster test driver 3 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.8151247 2.327241 2.722245 2 1 2.306569 2.482936 1.256352 3 1 2.78253 3.546282 2.927942 Masses 1 28.0855