Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.462268 3.520153 1.401605 2 1 2.78712 3.532007 3.744933 3 1 3.256487 1.79004 1.657951 4 1 4.555745 3.872199 2.03858 Masses 1 28.0855