Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.473601 0.758206 0.3241046 2 1 0.6605978 0.3280983 2.253004 3 1 1.152363 2.280508 2.499358 4 1 2.483173 0.1660582 2.77941 Masses 1 28.0855