Lambda1___B_is_Lambda2 19 19 Lambda2 -1 0 the_lattice_point_paired_with_0 0 0 the_lattice_point_paired_with_Lambda1 2 2 the_lattice_point_paired_with_2Lambda1 38 38 the_lattice_point_paired_with_Lambda2 -1 0 the_lattice_point_paired_with_Lambda1+Lambda2 18 19 the_lattice_point_paired_with_2Lambda1+Lambda2 37 38