-er -ic b-u bbb bbc bbd bbe bbg bbi bbk bbn bbr bbu bcb bcc bcd bce bcg bci bck bcn bcr bcu bdb bdc bdd bde bdg bdi bdk bdr bdu be- beb bec bed bee beg bei bek ben ber beu bgb bgc bgd bge bgg bgi bgk bgn bgr bgu bi- bib bic bid bie big bii bik bin bir biu bkb bkc bke bkg bkk bkn bkr bnb bnc bnd bne bng bni bnk bnn bnr bnu brb brd bre brg bri brk brn brr bru bub buc bud bue bug bui buk bun bur buu c-- cbb cbc cbd cbe cbg cbi cbk cbn cbr cbu ccb ccc ccd cce ccg cci cck ccn ccr ccu cdb cdc cdd cde cdg cdi cdk cdn cdr cdu ce- ceb cec ced cee ceg cei cek cen cer ceu cgb cgc cgd cge cgg cgi cgn cgr cgu ci- cib cic cid cie cig cii cik cin cir ciu ckb ckc ckd cki cn- cnb cnc cnd cne cng cni cnn cnr cnu crb crc crd cre crg cri crk crn crr cru cub cuc cud cue cug cui cuk cun cur cuu dbb dbc dbd dbe dbg dbi dbk dbn dbr dbu dcb dcc dcd dce dcg dci dck dcn dcr dcu ddb ddc ddd dde ddg ddi ddk ddn ddr ddu de- deb dec ded dee deg dei dek den der deu dgc dgd dge dgg dgi dgk dgn dgr dgu di- dib dic did die dig dii dik din dir diu dkb dkc dke dkg dki dkk dkr dku dnb dnc dnd dne dng dni dnk dnn dnr drb drc drd dre drg dri drk drn drr dru dub duc dud due dug dui duk dun dur ebb ebc ebd ebe ebg ebi ebk ebn ebr ebu ec- ecb ecc ecd ece ecg eci eck ecn ecr ecu ed- edb edc edd ede edg edi edk edn edr edu eeb eec eed eee eeg eek een eer egb egc egd ege egg egi egn egr egu eib eic eid eie eig eii eik ein eir eiu ekb ekc ekd eke ekg eki ekr eku en- enb enc end ene eng eni enk enn enr enu erb erc erd ere erg eri erk ern err eru eu- eub euc eud eue eug eui eun eur g-d gbc gbd gbe gbg gbi gbk gbn gbr gbu gcb gcc gcd gce gcg gci gck gcn gcr gcu gdb gdc gdd gde gdi gdk gdn gdr gdu ge- geb gec ged gee geg gei gek gen ger geu ggb ggc ggd ggg ggi ggn ggr ggu gib gic gid gie gig gii gik gin gir giu gkb gkd gkn gnb gnc gnd gne gni gnn gnr gnu grb grc grd gre grg gri grk grn grr gru gu- gub guc gud gue gug gui guk gun gur guu i-d ibb ibc ibd ibe ibg ibi ibk ibn ibr ibu icb icc icd ice icg ici ick icn icr icu idb idc idd ide idg idi idk idn idr idu ie- iec ied iee ieg iei iek ien ier igb igc igd ige igg igi igk ign igr igu iib iic iid iie iii iin iir iiu ikb ikc ike iki ikk ikr iku in- inb inc ind ine ing ini ink inn inr inu ir- irb irc ird ire irg iri irk irn irr iru iu- iub iuc iud iue iug iui iur kbb kbc kbd kbe kbi kbk kbn kbr kbu kcb kcc kcd kce kcg kci kck kcn kcr kcu kdb kdc kde kdg kdk kdr kdu ke- keb kec ked kee keg kei kek ken ker kgb kgc kgd kgi kgu kib kic kid kie kig kii kik kin kir kiu kkb kkc kke kki kkk kkn kkr kku kn- knc knd kne kng kni knk knn knr knu krc krd krg kri krk krn krr kru kub kuc kud kue kug kui kuk kun kur kuu n-i nbb nbc nbd nbe nbg nbi nbk nbn nbr nbu ncb ncc ncd nce ncg nci nck ncn ncr ncu ndb ndc ndd nde ndg ndi ndk ndn ndr ndu ne- neb nec ned nee neg nei nek nen ner neu ngb ngc ngd nge ngg ngi ngk ngn ngu nib nic nid nie nig nii nik nin nir niu nkc nke nki nkk nkn nkr nku nnb nnc nne nng nni nnk nnn nnu nrb nrc nrd nre nrg nri nrk nrn nrr nru nub nuc nud nue nug nui nuk nun nur nuu rbb rbc rbd rbe rbg rbi rbk rbn rbr rbu rcb rcc rcd rce rcg rci rcn rcr rcu rdb rdc rdd rde rdg rdi rdn rdr rdu re- reb rec red ree reg rei rek ren rer reu rgb rgc rgd rge rgg rgi rgk rgn rgr rib ric rid rie rig rii rik rin rir rkb rkc rke rkg rkk rku rnb rnc rnd rng rni rnn rnr rnu rrb rrc rrd rrg rri rrk rrn rrr rru rub ruc rud rue rug rui ruk run rur ruu ubb ubc ube ubg ubi ubk ubn ubr ubu ucb ucc ucd uce ucg uci uck ucn ucr ucu udb udc udd ude udg udi udk udn udr udu ueb uec ued uee ueg uei uen uer ugb ugc uge ugg ugi ugk ugn ugr ugu uib uic uid uie uig uii uin uir uiu ukb ukc uke uki ukk ukn ukr uku un- unb unc und une ung uni unk unn unr unu ur- urb urc urd ure urg uri urk urn urr uru uuc uue uug uun uur uuu