Lambda1___B_is_Lambda2 0 4 Lambda2 -1 0 the_lattice_point_paired_with_0 0 0 the_lattice_point_paired_with_Lambda1 0 2 the_lattice_point_paired_with_2Lambda1 0 8 the_lattice_point_paired_with_Lambda2 0 1 the_lattice_point_paired_with_Lambda1+Lambda2 -1 4 the_lattice_point_paired_with_2Lambda1+Lambda2 -1 8