-er -ic bbb bbc bbe bbh bbi bbm bbo bbr bbs bcb bcc bce bch bci bcm bco bcr bcs be- beb bec bee beh bei bem beo ber bes bhb bhc bhe bhh bhi bhm bho bhr bhs bi- bib bic bie bih bii bim bio bir bis bmb bmc bme bmh bmi bmm bmo bmr bms bob boc boe boh boi bom boo bor bos brb bre brh bri brm bro brr brs bsb bsc bse bsh bsi bsm bso bsr bss c-- cbb cbc cbe cbh cbi cbm cbo cbr cbs ccb ccc cce cch cci ccm cco ccr ccs ce- ceb cec cee ceh cei cem ceo cer ces ch- chb chc che chh chi chm cho chr chs ci- cib cic cie cih cii cim cio cir cis cmb cmc cme cmh cmi cmm cmo cmr cms co- cob coc coe coh coi com coo cor cos crb crc cre crh cri crm cro crr crs csb csc cse csh csi csm cso csr css ebb ebc ebe ebh ebi ebm ebo ebr ebs ec- ecb ecc ece ech eci ecm eco ecr ecs eeb eec eee eem eeo eer ees ehb ehc ehe ehh ehi ehm eho ehr ehs eib eic eie eii eim eio eir eis em- emb emc eme emh emi emm emo emr ems eo- eob eoc eoe eoh eoi eom eoo eor eos erb erc ere erh eri erm ero err ers es- esb esc ese esh esi esm eso esr ess h-i hbb hbc hbe hbh hbi hbm hbo hbr hbs hcb hcc hce hch hci hcm hco hcr hcs he- heb hec hee heh hei hem heo her hes hhb hhc hhe hhh hhi hhm hho hhr hhs hib hic hie hih hii him hio hir his hmb hmc hme hmh hmi hmm hmo hmr hms hob hoc hoe hoh hoi hom hoo hor hos hr- hrb hrc hre hrh hri hrm hro hrr hrs hsb hsc hse hsh hsi hsm hsr hss ibb ibc ibe ibh ibi ibm ibo ibr ibs icb icc ice ich ici icm ico icr ics ie- iec iee iei iem ier ies ihb ihc ihe ihh ihi ihm iho ihr ihs iib iic iie iih iii iim iio iir iis im- imb imc ime imh imi imm imo ims io- iob ioc ioe ioh ioi iom ioo ior ios ir- irb irc ire iri irm iro irr irs is- isb isc ise ish isi ism iso isr iss m-o m-r mbb mbc mbe mbh mbi mbm mbo mbr mbs mc- mcb mcc mce mch mci mcm mco mcr mcs meb mec mee meh mei mem meo mer mes mhc mhh mhi mhm mho mhr mhs mi- mib mic mie mih mii mim mio mir mis mmb mmc mme mmh mmi mmm mmo mmr mms mob moc moe moh moi mom moo mor mos mrb mrc mre mrh mri mrm mro mrr mrs msb msc mse msh msi msm mso msr mss o-i ob- obb obc obe obh obi obm obo obr obs oc- ocb occ och oci ocm oco ocr ocs oeb oec oee oeh oei oem oeo oer oes ohc ohe ohh ohi ohm oho ohr ohs oib oic oie oii oim oio oir ois om- omb omc ome omh omi omm omo omr oms oo- oob ooc ooh ooi oom ooo oor oos or- orb orc ore orh ori orm oro orr ors os- osb osc ose osh osi osm oso osr oss rbb rbc rbe rbh rbi rbm rbo rbr rbs rcb rcc rce rch rci rcm rco rcr rcs re- reb rec ree reh rei rem reo rer res rh- rhb rhc rhe rhh rhi rhm rho rhr rhs rib ric rie rih rii rim rio rir ris rmb rmc rme rmh rmi rmm rmo rmr rms rob roc roe roh roi rom roo ror ros rrb rrc rrh rri rrm rrr rrs rsb rsc rse rsh rsi rsm rso rsr rss sbb sbc sbe sbh sbi sbm sbo sbr sbs scb scc sce sch sci scm sco scr scs se- seb sec see seh sei sem seo ser ses sh- shb shc she shh shi shm sho shr shs sib sic sie sih sii sim sio sir sis smb smc sme smh smi smm smo smr sms sob soc soe soh soi som soo sor sos sr- srb src sre srh sri srm sro srr srs ss- ssb ssc sse ssh ssi ssm sso ssr sss