Lambda1___B_is_0 40 40 Lambda2 -1 0 the_lattice_point_paired_with_0 0 0 the_lattice_point_paired_with_Lambda1 40 40 the_lattice_point_paired_with_2Lambda1 80 80 the_lattice_point_paired_with_Lambda2 -1 0 the_lattice_point_paired_with_Lambda1+Lambda2 1 1 the_lattice_point_paired_with_2Lambda1+Lambda2 79 80