Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.313891 1.116241 2.673861 2 1 0.9757071 2.889413 1.489712 3 1 1.633474 0.1638512 0.5892112 4 1 2.566803 2.188641 0.09068099 Masses 1 28.0855