-ic b-u bbb bbc bbe bbi bbk bbl bbq bbt bbu bcb bcc bce bci bck bcl bcq bct bcu be- beb bec bee bei bek bel beq bet beu bi- bib bic bie bii bik bil bit biu bkb bkc bke bkk bkl bkq bkt blb blc ble bli blk bll blq blt blu bqc bqe bqt btb btc bte bti btk btl btq btt btu bub buc bue bui buk bul but buu c-- cbb cbc cbe cbi cbk cbl cbq cbt cbu ccb ccc cce cci cck ccl cct ccu ce- ceb cec cee cei cek cel ceq cet ceu ci- cib cic cie cii cik cil ciq cit ciu ckb ckc cki ckt cl- clb clc cle cli clk cll clt clu cqb cqc cqi cql cqt ctb ctc cte cti ctk ctl ctq ctt ctu cub cuc cue cui cuk cul cuq cut cuu ebb ebc ebe ebi ebk ebl ebq ebt ebu ec- ecb ecc ece eci eck ecl ecq ect ecu eeb eec eee eek eel eet eib eic eie eii eik eil eit eiu ekb ekc eke eki ekl ekt eku elb elc ele eli elk ell elt elu eqe eqq eqt equ etb etc ete eti etk etl ett etu eu- eub euc eue eui eul eut ibb ibc ibe ibi ibk ibl ibt ibu icb icc ice ici ick icl icq ict icu ie- iec iee iei iek iel iet iib iic iie iii iil iit iiu ikb ikc ike iki ikk ikl ikt iku il- ilb ilc ile ili ilk ill ilq ilt ilu iqc iqe iqt iqu itb itc ite iti itk itl itq itt itu iu- iub iuc iue iui iut k-t kbb kbc kbe kbi kbk kbl kbu kcb kcc kce kci kck kcl kct kcu ke- keb kec kee kei kek kel ket kib kic kie kii kik kil kit kiu kkb kkc kke kki kkk kkl kkt kku kl- klb klc kli klq klt klu kql ktb ktc kte ktk ktl ktt ktu kub kuc kue kui kuk kul kut kuu lbb lbc lbe lbi lbk lbl lbt lbu lcb lcc lce lci lck lcl lcq lct lcu leb lec lee lei lek lel leq let leu lib lic lie lii lik lil liq lit liu lkb lkl lkt llb llc lle lli llk lll llq llt llu ltb ltc lte lti ltk ltl ltt ltu lub luc lue lui luk lul lut luu qbc qbe qbq qcc qci qcl qct qec qee qet qic qie qik qil qit qiu qki qqk qqq qqu qtc qti qtq qu- que qui qul qut tbb tbc tbe tbi tbk tbl tbt tbu tcb tcc tce tci tck tcl tct tcu te- teb tec tee tei tek tel teq tet teu tib tic tie tii tik til tit tiu tkb tkc tke tkk tkl tkt tlc tle tli tlk tll tlt tlu ttb ttc tte tti ttk ttl ttt ttu tub tuc tue tui tuk tul tut tuu ubb ubc ube ubi ubk ubl ubt ubu ucb ucc uce uci uck ucl uct ucu ueb uec uee uei uel uet uib uic uie uii uil uiq uit uiu ukb ukc uke uki ukk ukl uku ulb ulc ule uli ulk ull ult ulu utb utc ute uti utk utl utt utu uuc uue uut uuu