Cluster test driver 3 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.64659 1.34203 1.733704 2 1 3.662761 0.7313497 1.54241 3 1 3.143632 2.376338 2.951118 Masses 1 28.0855