Lambda1___B_is_Lambda1 30 30 Lambda2 -1 0 the_lattice_point_paired_with_0 1 2 the_lattice_point_paired_with_Lambda1 30 30 the_lattice_point_paired_with_2Lambda1 60 60 the_lattice_point_paired_with_Lambda2 -1 0 the_lattice_point_paired_with_Lambda1+Lambda2 29 30 the_lattice_point_paired_with_2Lambda1+Lambda2 59 60