Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.568329 2.374036 2.84115 2 1 2.585215 4.223663 1.237778 3 1 4.050363 2.582934 1.712612 4 1 3.258528 3.911947 3.864299 Masses 1 28.0855