Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 0.9505157 0.2188035 1.167052 2 1 1.351141 0.1259635 2.902511 3 1 1.246716 2.176642 0.03376018 4 1 2.566353 2.362445 2.325342 Masses 1 28.0855