Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.716359 1.412699 2.394819 2 1 3.01973 2.981726 2.588794 3 1 1.169208 3.673412 1.754347 4 1 3.934247 1.183557 2.830214 Masses 1 28.0855