-er -ic b-u bbb bbc bbe bbg bbi bbk bbn bbr bbt bbu bcb bcc bce bcg bci bck bcn bcr bct bcu be- beb bec bee beg bei bek ben ber bet beu bgb bgc bge bgg bgi bgk bgn bgr bgt bgu bi- bib bic bie big bii bik bin bir bit biu bkb bkc bke bkg bkk bkn bkr bkt bnb bnc bne bng bni bnk bnn bnr bnt bnu brb bre brg bri brk brn brr brt bru btb btc bte btg bti btk btn btr btt btu bub buc bue bug bui buk bun bur but buu c-- cbb cbc cbe cbg cbi cbk cbn cbr cbt cbu ccb ccc cce ccg cci cck ccn ccr cct ccu ce- ceb cec cee ceg cei cek cen cer cet ceu cgb cgc cge cgg cgi cgn cgr cgt cgu ci- cib cic cie cig cii cik cin cir cit ciu ckb ckc cki ckt cn- cnb cnc cne cng cni cnn cnr cnt cnu crb crc cre crg cri crk crn crr crt cru ctb ctc cte ctg cti ctk ctn ctr ctt ctu cub cuc cue cug cui cuk cun cur cut cuu ebb ebc ebe ebg ebi ebk ebn ebr ebt ebu ec- ecb ecc ece ecg eci eck ecn ecr ect ecu eeb eec eee eeg eek een eer eet egb egc ege egg egi egn egr egt egu eib eic eie eig eii eik ein eir eit eiu ekb ekc eke ekg eki ekr ekt eku en- enb enc ene eng eni enk enn enr ent enu erb erc ere erg eri erk ern err ert eru etb etc ete etg eti etk etn etr ett etu eu- eub euc eue eug eui eun eur eut gbc gbe gbg gbi gbk gbn gbr gbt gbu gcb gcc gce gcg gci gck gcn gcr gct gcu ge- geb gec gee geg gei gek gen ger get geu ggb ggc ggg ggi ggn ggr ggt ggu gib gic gie gig gii gik gin gir git giu gkb gkn gkt gnb gnc gne gni gnn gnr gnt gnu grb grc gre grg gri grk grn grr grt gru gtb gtc gte gtg gti gtk gtn gtr gtt gtu gu- gub guc gue gug gui guk gun gur gut guu ibb ibc ibe ibg ibi ibk ibn ibr ibt ibu icb icc ice icg ici ick icn icr ict icu ie- iec iee ieg iei iek ien ier iet igb igc ige igg igi igk ign igr igt igu iib iic iie iii iin iir iit iiu ikb ikc ike iki ikk ikr ikt iku in- inb inc ine ing ini ink inn inr int inu ir- irb irc ire irg iri irk irn irr irt iru itb itc ite itg iti itk itn itt itu iu- iub iuc iue iug iui iur iut k-t kbb kbc kbe kbi kbk kbn kbr kbu kcb kcc kce kcg kci kck kcn kcr kct kcu ke- keb kec kee keg kei kek ken ker ket kgb kgc kgi kgu kib kic kie kig kii kik kin kir kit kiu kkb kkc kke kki kkk kkn kkr kkt kku kn- knc kne kng kni knk knn knr knt knu krc krg kri krk krn krr krt kru ktb ktc kte ktg ktk ktn ktr ktt ktu kub kuc kue kug kui kuk kun kur kut kuu n-i nbb nbc nbe nbg nbi nbk nbn nbr nbt nbu ncb ncc nce ncg nci nck ncn ncr nct ncu ne- neb nec nee neg nei nek nen ner net neu ngb ngc nge ngg ngi ngk ngn ngt ngu nib nic nie nig nii nik nin nir nit niu nkc nke nki nkk nkn nkr nkt nku nnb nnc nne nng nni nnk nnn nnt nnu nrb nrc nre nrg nri nrk nrn nrr nrt nru ntb ntc nte ntg nti ntk ntn ntr ntt ntu nub nuc nue nug nui nuk nun nur nut nuu rbb rbc rbe rbg rbi rbk rbn rbr rbt rbu rcb rcc rce rcg rci rcn rcr rct rcu re- reb rec ree reg rei rek ren rer ret reu rgb rgc rge rgg rgi rgk rgn rgr rgt rib ric rie rig rii rik rin rir rit rkb rkc rke rkg rkk rkt rku rnb rnc rng rni rnn rnr rnt rnu rrb rrc rrg rri rrk rrn rrr rrt rru rtb rtc rte rtg rti rtk rtn rtr rtt rtu rub ruc rue rug rui ruk run rur rut ruu tbb tbc tbe tbg tbi tbk tbn tbr tbt tbu tcb tcc tce tcg tci tck tcn tcr tct tcu te- teb tec tee teg tei tek ten ter tet teu tgb tgc tge tgg tgi tgk tgn tgr tgt tgu tib tic tie tig tii tik tin tir tit tiu tkb tkc tke tkg tkk tkr tkt tnb tnc tne tng tni tnk tnn tnr tnt trb trc tre trg tri trk trn trr trt tru ttb ttc tte ttg tti ttk ttn ttr ttt ttu tub tuc tue tug tui tuk tun tur tut tuu ubb ubc ube ubg ubi ubk ubn ubr ubt ubu ucb ucc uce ucg uci uck ucn ucr uct ucu ueb uec uee ueg uei uen uer uet ugb ugc uge ugg ugi ugk ugn ugr ugt ugu uib uic uie uig uii uin uir uit uiu ukb ukc uke uki ukk ukn ukr uku un- unb unc une ung uni unk unn unr unt unu ur- urb urc ure urg uri urk urn urr urt uru utb utc ute uti utk utn utr utt utu uuc uue uug uun uur uut uuu