-er -ic b-u bbb bbc bbd bbe bbi bbm bbr bbt bbu bcb bcc bcd bce bci bcm bcr bct bcu bdb bdc bdd bde bdi bdm bdr bdt bdu be- beb bec bed bee bei bem ber bet beu bi- bib bic bid bie bii bim bir bit biu bmb bmc bmd bme bmi bmm bmr bmt bmu brb brd bre bri brm brr brt bru btb btc btd bte bti btm btr btt btu bub buc bud bue bui bum bur but buu c-- cbb cbc cbd cbe cbi cbm cbr cbt cbu ccb ccc ccd cce cci ccm ccr cct ccu cdb cdc cdd cde cdi cdm cdr cdt cdu ce- ceb cec ced cee cei cem cer cet ceu ci- cib cic cid cie cii cim cir cit ciu cmb cmc cmd cme cmi cmm cmr cmt cmu crb crc crd cre cri crm crr crt cru ctb ctc ctd cte cti ctm ctr ctt ctu cub cuc cud cue cui cum cur cut cuu dbb dbc dbd dbe dbi dbm dbr dbt dbu dcb dcc dcd dce dci dcm dcr dct dcu ddb ddc ddd dde ddi ddm ddr ddt ddu de- deb dec ded dee dei dem der det deu di- dib dic did die dii dim dir dit diu dmb dmc dmd dme dmi dmm dmr dmt dmu drb drc drd dre dri drm drr drt dru dtb dtc dtd dte dti dtm dtr dtt dtu dub duc dud due dui dum dur dut ebb ebc ebd ebe ebi ebm ebr ebt ebu ec- ecb ecc ecd ece eci ecm ecr ect ecu ed- edb edc edd ede edi edm edr edt edu eeb eec eed eee eem eer eet eib eic eid eie eii eim eir eit eiu em- emb emc emd eme emi emm emr emt emu erb erc erd ere eri erm err ert eru etb etc etd ete eti etm etr ett etu eu- eub euc eud eue eui eur eut i-d ibb ibc ibd ibe ibi ibm ibr ibt ibu icb icc icd ice ici icm icr ict icu idb idc idd ide idi idm idr idt idu ie- iec ied iee iei iem ier iet iib iic iid iie iii iim iir iit iiu im- imb imc imd ime imi imm imt imu ir- irb irc ird ire iri irm irr irt iru itb itc itd ite iti itm itt itu iu- iub iuc iud iue iui ium iur iut m-r mbb mbc mbd mbe mbi mbm mbr mbt mbu mc- mcb mcc mcd mce mci mcm mcr mct mcu mdb mdc mdd mde mdi mdm mdr mdt mdu meb mec med mee mei mem mer met meu mi- mib mic mid mie mii mim mir mit miu mmb mmc mmd mme mmi mmm mmr mmt mmu mrb mrc mrd mre mri mrm mrr mrt mru mtb mtc mtd mte mti mtm mtr mtt mtu mub muc mud mue mui mum mur mut muu rbb rbc rbd rbe rbi rbm rbr rbt rbu rcb rcc rcd rce rci rcm rcr rct rcu rdb rdc rdd rde rdi rdm rdr rdt rdu re- reb rec red ree rei rem rer ret reu rib ric rid rie rii rim rir rit rmb rmc rmd rme rmi rmm rmr rmt rrb rrc rrd rri rrm rrr rrt rru rtb rtc rtd rte rti rtm rtr rtt rtu rub ruc rud rue rui rum rur rut ruu tbb tbc tbd tbe tbi tbm tbr tbt tbu tcb tcc tcd tce tci tcm tcr tct tcu tdb tdc tdd tde tdi tdm tdr tdt tdu te- teb tec ted tee tei tem ter tet teu tib tic tid tie tii tim tir tit tiu tmb tmc tmd tme tmi tmm tmr tmt tmu trb trc trd tre tri trm trr trt tru ttb ttc ttd tte tti ttm ttr ttt ttu tub tuc tud tue tui tum tur tut tuu ubb ubc ube ubi ubr ubt ubu ucb ucc ucd uce uci ucm ucr uct ucu udb udc udd ude udi udm udr udt udu ueb uec ued uee uei uem uer uet uib uic uid uie uii uim uir uit uiu um- umb umc umd ume umi umm umr umt umu ur- urb urc urd ure uri urm urr urt uru utb utc utd ute uti utm utr utt utu uuc uue uum uur uut uuu