-er -ic b-u bbb bbc bbe bbi bbm bbn bbr bbs bbt bbu bcb bcc bce bci bcm bcn bcr bcs bct bcu be- beb bec bee bei bem ben ber bes bet beu bi- bib bic bie bii bim bin bir bis bit biu bmb bmc bme bmi bmm bmn bmr bms bmt bmu bnb bnc bne bni bnn bnr bns bnt bnu brb bre bri brm brn brr brs brt bru bsb bsc bse bsi bsm bsn bsr bss bst bsu btb btc bte bti btm btn btr bts btt btu bub buc bue bui bum bun bur bus but buu c-- cbb cbc cbe cbi cbm cbn cbr cbs cbt cbu ccb ccc cce cci ccm ccn ccr ccs cct ccu ce- ceb cec cee cei cem cen cer ces cet ceu ci- cib cic cie cii cim cin cir cis cit ciu cmb cmc cme cmi cmm cmn cmr cms cmt cmu cn- cnb cnc cne cni cnm cnn cnr cns cnt cnu crb crc cre cri crm crn crr crs crt cru csb csc cse csi csm csn csr css cst csu ctb ctc cte cti ctm ctn ctr cts ctt ctu cub cuc cue cui cum cun cur cus cut cuu ebb ebc ebe ebi ebm ebn ebr ebs ebt ebu ec- ecb ecc ece eci ecm ecn ecr ecs ect ecu eeb eec eee eem een eer ees eet eib eic eie eii eim ein eir eis eit eiu em- emb emc eme emi emm emn emr ems emt emu en- enb enc ene eni enm enn enr ens ent enu erb erc ere eri erm ern err ers ert eru es- esb esc ese esi esm esn esr ess est esu etb etc ete eti etm etn etr ets ett etu eu- eub euc eue eui eun eur eus eut ibb ibc ibe ibi ibm ibn ibr ibs ibt ibu icb icc ice ici icm icn icr ics ict icu ie- iec iee iei iem ien ier ies iet iib iic iie iii iim iin iir iis iit iiu im- imb imc ime imi imm imn ims imt imu in- inb inc ine ini inm inn inr ins int inu ir- irb irc ire iri irm irn irr irs irt iru is- isb isc ise isi ism isn isr iss ist isu itb itc ite iti itm itn its itt itu iu- iub iuc iue iui ium iur ius iut m-r mbb mbc mbe mbi mbm mbr mbs mbt mbu mc- mcb mcc mce mci mcm mcn mcr mcs mct mcu meb mec mee mei mem men mer mes met meu mi- mib mic mie mii mim min mir mis mit miu mmb mmc mme mmi mmm mmn mmr mms mmt mmu mnb mnc mne mni mnm mnn mnr mns mnt mnu mrb mrc mre mri mrm mrn mrr mrs mrt mru msb msc mse msi msm msn msr mss mst msu mtb mtc mte mti mtm mtn mtr mts mtt mtu mub muc mue mui mum mun mur mus mut muu n-i nbb nbc nbe nbi nbm nbn nbr nbs nbt nbu ncb ncc nce nci ncm ncn ncr ncs nct ncu ne- neb nec nee nei nem nen ner nes net neu nib nic nie nii nim nin nir nis nit niu nmb nmc nme nmi nmm nmn nmr nms nmt nmu nnb nnc nne nni nnm nnn nns nnt nnu nrb nrc nre nri nrm nrn nrr nrs nrt nru nsb nsc nse nsi nsm nsn nsr nss nst nsu ntb ntc nte nti ntm ntn ntr nts ntt ntu nub nuc nue nui num nun nur nus nut nuu rbb rbc rbe rbi rbm rbn rbr rbs rbt rbu rcb rcc rce rci rcm rcn rcr rcs rct rcu re- reb rec ree rei rem ren rer res ret reu rib ric rie rii rim rin rir ris rit rmb rmc rme rmi rmm rmn rmr rms rmt rnb rnc rni rnm rnn rnr rns rnt rnu rrb rrc rri rrm rrn rrr rrs rrt rru rsb rsc rse rsi rsm rsn rsr rss rst rsu rtb rtc rte rti rtm rtn rtr rts rtt rtu rub ruc rue rui rum run rur rus rut ruu sbb sbc sbe sbi sbm sbn sbr sbs sbt sbu scb scc sce sci scm scn scr scs sct scu se- seb sec see sei sem sen ser ses set seu sib sic sie sii sim sin sir sis sit siu smb smc sme smi smm smn smr sms smt smu snb snc sne sni snm snn snr sns snt snu sr- srb src sre sri srm srn srr srs srt ss- ssb ssc sse ssi ssm ssn ssr sss sst ssu stb stc ste sti stm stn str sts stt stu sub suc sue sui sum sun sur sus sut suu tbb tbc tbe tbi tbm tbn tbr tbs tbt tbu tcb tcc tce tci tcm tcn tcr tcs tct tcu te- teb tec tee tei tem ten ter tes tet teu tib tic tie tii tim tin tir tis tit tiu tmb tmc tme tmi tmm tmn tmr tms tmt tmu tnb tnc tne tni tnm tnn tnr tns tnt trb trc tre tri trm trn trr trs trt tru tsb tsc tse tsi tsm tsn tsr tss tst tsu ttb ttc tte tti ttm ttn ttr tts ttt ttu tub tuc tue tui tum tun tur tus tut tuu ubb ubc ube ubi ubn ubr ubs ubt ubu ucb ucc uce uci ucm ucn ucr ucs uct ucu ueb uec uee uei uem uen uer ues uet uib uic uie uii uim uin uir uis uit uiu um- umb umc ume umi umm umn umr ums umt umu un- unb unc une uni unm unn unr uns unt unu ur- urb urc ure uri urm urn urr urs urt uru usb usc use usi usm usn usr uss ust usu utb utc ute uti utm utn utr uts utt