-er -ic b-u bbb bbc bbd bbe bbh bbi bbr bbs bbu bcb bcc bcd bce bch bci bcr bcs bcu bdb bdc bdd bde bdh bdi bdr bds bdu be- beb bec bed bee beh bei ber bes beu bhb bhc bhd bhe bhh bhi bhr bhs bhu bi- bib bic bid bie bih bii bir bis biu brb brd bre brh bri brr brs bru bsb bsc bsd bse bsh bsi bsr bss bsu bub buc bud bue buh bui bur bus buu c-- cbb cbc cbd cbe cbh cbi cbr cbs cbu ccb ccc ccd cce cch cci ccr ccs ccu cdb cdc cdd cde cdh cdi cdr cds cdu ce- ceb cec ced cee ceh cei cer ces ceu ch- chb chc chd che chh chi chr chs chu ci- cib cic cid cie cih cii cir cis ciu crb crc crd cre crh cri crr crs cru csb csc csd cse csh csi csr css csu cub cuc cud cue cuh cui cur cus cuu dbb dbc dbd dbe dbh dbi dbr dbs dbu dcb dcc dcd dce dci dcr dcs dcu ddb ddc ddd dde ddh ddi ddr dds ddu de- deb dec ded dee deh dei der des deu dh- dhb dhc dhd dhe dhh dhi dhr dhs dhu di- dib dic did die dih dii dir dis diu drb drc drd dre dri drr drs dru dsb dsc dsd dse dsh dsi dsr dss dsu dub duc dud due duh dui dur dus ebb ebc ebd ebe ebh ebi ebr ebs ebu ec- ecb ecc ecd ece ech eci ecr ecs ecu ed- edb edc edd ede edh edi edr eds edu eeb eec eed eee eer ees ehb ehc ehd ehe ehh ehi ehr ehs ehu eib eic eid eie eii eir eis eiu erb erc erd ere erh eri err ers eru es- esb esc esd ese esh esi esr ess esu eu- eub euc eud eue eui eur eus h-i hbb hbc hbd hbe hbh hbi hbr hbs hbu hcb hcc hcd hce hch hci hcr hcs hdb hdc hdd hde hdh hdi hdr hds hdu he- heb hec hed hee heh hei her hes heu hhb hhc hhd hhe hhh hhi hhr hhs hhu hib hic hid hie hih hii hir his hiu hr- hrb hrc hrd hre hrh hri hrr hrs hru hsb hsc hsd hse hsh hsi hsr hss hsu hub huc hud hue huh hui hur hus huu i-d ibb ibc ibd ibe ibh ibi ibr ibs ibu icb icc icd ice ich ici icr ics icu idb idc idd ide idh idi idr ids idu ie- iec ied iee iei ier ies ihb ihc ihd ihe ihh ihi ihr ihs ihu iib iic iid iie iih iii iir iis iiu ir- irb irc ird ire iri irr irs iru is- isb isc isd ise ish isi isr iss isu iu- iub iuc iud iue iui iur ius rbb rbc rbd rbe rbh rbi rbr rbs rbu rcb rcc rcd rce rch rci rcr rcs rcu rdb rdc rdd rde rdh rdi rdr rds rdu re- reb rec red ree reh rei rer res reu rh- rhb rhc rhd rhe rhh rhi rhr rhs rhu rib ric rid rie rih rii rir ris rrb rrc rrd rrh rri rrr rrs rru rsb rsc rsd rse rsh rsi rsr rss rsu rub ruc rud rue ruh rui rur rus ruu sbb sbc sbd sbe sbh sbi sbr sbs sbu scb scc scd sce sch sci scr scs scu sdb sdc sdd sde sdh sdi sdr sds sdu se- seb sec sed see seh sei ser ses seu sh- shb shc shd she shh shi shr shs shu sib sic sid sie sih sii sir sis siu sr- srb src srd sre srh sri srr srs ss- ssb ssc ssd sse ssh ssi ssr sss ssu sub suc sud sue suh sui sur sus suu ubb ubc ube ubh ubi ubr ubs ubu ucb ucc ucd uce uch uci ucr ucs ucu udb udc udd ude udi udr uds udu ueb uec ued uee ueh uei uer ues uhb uhc uhd uhe uhh uhi uhr uhs uhu uib uic uid uie uii uir uis uiu ur- urb urc urd ure uri urr urs uru usb usc usd use ush usi usr uss usu uuc uue uur uus uuu