Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.438828 2.90963 1.106787 2 1 1.47463 4.835343 1.863436 3 1 2.314132 3.251036 2.795551 4 1 3.696872 4.248886 0.9164855 Masses 1 28.0855