Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.372305 1.173507 0.2418804 2 1 0.647847 2.816428 0.5546559 3 1 1.690737 0.5465307 2.278242 4 1 2.241177 2.83697 2.714201 Masses 1 28.0855