Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.656236 1.980441 2.884373 2 1 2.026356 4.383634 2.019242 3 1 0.02769446 3.495375 2.241241 4 1 3.93237 2.544896 2.057663 Masses 1 28.0855