Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.61188 5.080623 2.93239 2 1 4.855786 1.762639 3.084137 3 1 3.780411 3.32193 1.747479 4 1 4.346291 4.090656 3.759617 Masses 1 28.0855