Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.406773 2.709129 1.323095 2 1 2.368678 1.150632 2.747721 3 1 1.728543 3.608736 3.24956 4 1 3.865166 3.131242 2.723008 Masses 1 28.0855