Lambda1___B_is_0 21 21 Lambda2 -1 0 the_lattice_point_paired_with_0 1 1 the_lattice_point_paired_with_Lambda1 2 2 the_lattice_point_paired_with_2Lambda1 41 41 the_lattice_point_paired_with_Lambda2 0 1 the_lattice_point_paired_with_Lambda1+Lambda2 1 2 the_lattice_point_paired_with_2Lambda1+Lambda2 40 41