Lambda1___B_is_Lambda1 25 25 Lambda2 -1 0 the_lattice_point_paired_with_0 1 2 the_lattice_point_paired_with_Lambda1 3 4 the_lattice_point_paired_with_2Lambda1 50 50 the_lattice_point_paired_with_Lambda2 -1 0 the_lattice_point_paired_with_Lambda1+Lambda2 24 25 the_lattice_point_paired_with_2Lambda1+Lambda2 49 50