Lambda1___B_is_0 11 11 Lambda2 0 1 the_lattice_point_paired_with_0 1 1 the_lattice_point_paired_with_Lambda1 2 2 the_lattice_point_paired_with_2Lambda1 21 21 the_lattice_point_paired_with_Lambda2 1 2 the_lattice_point_paired_with_Lambda1+Lambda2 2 3 the_lattice_point_paired_with_2Lambda1+Lambda2 21 22