Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.137105 0.4960836 2.336745 2 1 0.1995221 2.603398 2.709633 3 1 1.958667 0.01286446 0.3845919 4 1 2.315861 1.899112 1.511593 Masses 1 28.0855