Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.101107 2.382088 1.155059 2 1 1.870329 4.675053 0.5879216 3 1 2.558831 4.133121 3.113399 4 1 4.446179 2.802067 2.809564 Masses 1 28.0855