Lambda1___B_is_Lambda1+Lambda2 20 20 Lambda2 0 2 the_lattice_point_paired_with_0 0 0 the_lattice_point_paired_with_Lambda1 2 2 the_lattice_point_paired_with_2Lambda1 40 40 the_lattice_point_paired_with_Lambda2 0 1 the_lattice_point_paired_with_Lambda1+Lambda2 1 1 the_lattice_point_paired_with_2Lambda1+Lambda2 40 41