Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.864683 1.866161 1.825326 2 1 1.617619 4.144917 1.356057 3 1 3.090269 3.905988 2.739114 4 1 3.727671 1.752123 3.16656 Masses 1 28.0855