Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.03824735 0.17931 2.217788 2 1 0.3920207 2.402909 0.5996192 3 1 1.210981 1.908369 2.946369 4 1 2.769481 2.512876 1.592808 Masses 1 28.0855