#LAMMPS single data 2 atoms 1 bonds 2 atom types 1 bond types 0.0000000 2.0000000 xlo xhi 0.0000000 2.0000000 ylo yhi 0.0000000 2.00000000 zlo zhi Masses 1 1.0 2 1.0 Atoms 1 1 1 0.50000000000000000 0.50000000000000000 0.50000 2 1 2 0.50000000000000000 0.50010000000000000 0.50000 Bonds 1 1 1 2