Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 1.360904 2.079516 2.545996 2 1 2.785203 1.562136 0.9928171 3 1 1.864981 3.2361 0.579935 4 1 3.677678 3.8342 1.569401 Masses 1 28.0855