-er -ic b-u bbb bbc bbe bbg bbi bbn bbo bbr bbt bbu bcb bcc bce bcg bci bcn bco bcr bct bcu be- beb bec bee beg bei ben beo ber bet beu bgb bgc bge bgg bgi bgn bgo bgr bgt bgu bi- bib bic bie big bii bin bio bir bit biu bnb bnc bne bng bni bnn bno bnr bnt bnu bob boc boe bog boi bon boo bor bot bou brb bre brg bri brn bro brr brt bru btb btc bte btg bti btn bto btr btt btu bub buc bue bug bui bun buo bur but buu c-- cbb cbc cbe cbg cbi cbn cbo cbr cbt cbu ccb ccc cce ccg cci ccn cco ccr cct ccu ce- ceb cec cee ceg cei cen ceo cer cet ceu cgb cgc cge cgg cgi cgn cgo cgr cgt cgu ci- cib cic cie cig cii cin cio cir cit ciu cn- cnb cnc cne cng cni cnn cno cnr cnt cnu co- cob coc coe cog coi con coo cor cot cou crb crc cre crg cri crn cro crr crt cru ctb ctc cte ctg cti ctn cto ctr ctt ctu cub cuc cue cug cui cun cuo cur cut cuu ebb ebc ebe ebg ebi ebn ebo ebr ebt ebu ec- ecb ecc ece ecg eci ecn eco ecr ect ecu eeb eec eee eeg een eeo eer eet egb egc ege egg egi egn ego egr egt egu eib eic eie eig eii ein eio eir eit eiu en- enb enc ene eng eni enn eno enr ent enu eo- eob eoc eoe eog eoi eon eoo eor eot eou erb erc ere erg eri ern ero err ert eru etb etc ete etg eti etn eto etr ett etu eu- eub euc eue eug eui eun eur eut gbc gbe gbg gbi gbn gbo gbr gbt gbu gcb gcc gce gcg gci gcn gco gcr gct gcu ge- geb gec gee geg gei gen geo ger get geu ggb ggc ggg ggi ggn ggo ggr ggt ggu gib gic gie gig gii gin gio gir git giu gnb gnc gne gni gnn gno gnr gnt gnu gob goc goe gog goi gon goo gor got gou grb grc gre grg gri grn gro grr grt gru gtb gtc gte gtg gti gtn gto gtr gtt gtu gu- gub guc gue gug gui gun guo gur gut guu ibb ibc ibe ibg ibi ibn ibo ibr ibt ibu icb icc ice icg ici icn ico icr ict icu ie- iec iee ieg iei ien ier iet igb igc ige igg igi ign igo igr igt igu iib iic iie iii iin iio iir iit iiu in- inb inc ine ing ini inn ino inr int inu io- iob ioc ioe iog ioi ion ioo ior iot iou ir- irb irc ire irg iri irn iro irr irt iru itb itc ite itg iti itn ito itt itu iu- iub iuc iue iug iui iur iut n-i nbb nbc nbe nbg nbi nbn nbo nbr nbt nbu ncb ncc nce ncg nci ncn nco ncr nct ncu ne- neb nec nee neg nei nen neo ner net neu ngb ngc nge ngg ngi ngn ngo ngt ngu nib nic nie nig nii nin nio nir nit niu nnb nnc nne nng nni nnn nno nnt nnu no- nob noc noe nog noi non noo nor not nou nrb nrc nre nrg nri nrn nro nrr nrt nru ntb ntc nte ntg nti ntn nto ntr ntt ntu nub nuc nue nug nui nun nuo nur nut nuu o-i ob- obb obc obe obg obi obn obo obr obt obu oc- ocb occ ocg oci ocn oco ocr oct ocu oeb oec oee oeg oei oen oeo oer oet ogc oge ogg ogi ogn ogo ogt oib oic oie oii oin oio oir oit oiu on- onb onc one ong oni onn ono onr ont onu oo- oob ooc oog ooi oon ooo oor oot or- orb orc ore org ori orn oro orr ort oru ot- otb otc ote otg oti otn oto otr ott otu ou- ouc oue oui oun ouo our out rbb rbc rbe rbg rbi rbn rbo rbr rbt rbu rcb rcc rce rcg rci rcn rco rcr rct rcu re- reb rec ree reg rei ren reo rer ret reu rgb rgc rge rgg rgi rgn rgo rgr rgt rib ric rie rig rii rin rio rir rit rnb rnc rng rni rnn rno rnr rnt rnu rob roc roe rog roi ron roo ror rot rou rrb rrc rrg rri rrn rrr rrt rru rtb rtc rte rtg rti rtn rto rtr rtt rtu rub ruc rue rug rui run ruo rur rut ruu tbb tbc tbe tbg tbi tbn tbo tbr tbt tbu tcb tcc tce tcg tci tcn tco tcr tct tcu te- teb tec tee teg tei ten teo ter tet teu tgb tgc tge tgg tgi tgn tgo tgr tgt tgu tib tic tie tig tii tin tio tir tit tiu tnb tnc tne tng tni tnn tno tnr tnt to- tob toc toe tog toi ton too tor tot tou trb trc tre trg tri trn tro trr trt tru ttb ttc tte ttg tti ttn tto ttr ttt ttu tub tuc tue tug tui tun tuo tur tut tuu ubb ubc ube ubg ubi ubn ubo ubr ubt ubu ucb ucc uce ucg uci ucn uco ucr uct ucu ueb uec uee ueg uei uen uer uet ugb ugc uge ugg ugi ugn ugo ugr ugt ugu uib uic uie uig uii uin uio uir uit uiu un- unb unc une ung uni unn uno unr unt unu uob uoc uoe uog uon uoo uor uot ur- urb urc ure urg uri urn uro urr urt uru utb utc ute uti utn uto utr utt utu uuc uue uug uun uur uut uuu