Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.246222 2.290872 1.652898 2 1 2.490841 4.854967 1.667579 3 1 4.844067 5.406569 1.389847 4 1 4.304953 3.186971 2.169551 Masses 1 28.0855