Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.863392 0.9174024 2.131679 2 1 1.743785 3.161179 2.338482 3 1 3.796379 2.424216 2.662572 4 1 3.364653 4.523699 1.7279 Masses 1 28.0855