b-u bbb bbc bbe bbn bbo bbq bbu bcb bcc bce bcn bco bcq bcu be- beb bec bee ben beo beq beu bnb bnc bne bnn bno bnu bob boc boe bon boo boq bou bqc bqe bub buc bue bun buo buu c-- cbb cbc cbe cbn cbo cbq cbu ccb ccc cce ccn cco ccu ce- ceb cec cee cen ceo ceq ceu cn- cnb cnc cne cnn cno cnu co- cob coc coe con coo coq cou cqb cqc cqo cub cuc cue cun cuo cuq cuu ebb ebc ebe ebn ebo ebq ebu ec- ecb ecc ece ecn eco ecq ecu eeb eec eee een eeo en- enb enc ene enn eno enu eo- eob eoc eoe eon eoo eoq eou eqe eqn eqq equ eu- eub euc eue eun nbb nbc nbe nbn nbo nbu ncb ncc nce ncn nco ncu ne- neb nec nee nen neo neu nnb nnc nne nnn nno nnu no- nob noc noe non noo nou nqc nub nuc nue nun nuo nuq nuu ob- obb obc obe obn obo obu oc- ocb occ ocn oco ocu oeb oec oee oen oeo on- onb onc one onn ono onu oo- oob ooc oon ooo oqb oqo ou- ouc oue oun ouo qbc qbe qbq qcc qco qec qee qen qeo qnb qne qoo qqq qqu qu- que quo ubb ubc ube ubn ubo ubu ucb ucc uce ucn uco ucu ueb uec uee uen un- unb unc une unn uno unq unu uob uoc uoe uon uoo uuc uue uun uuu