-er -ic b-u bbb bbc bbd bbe bbh bbi bbo bbr bbs bbu bcb bcc bcd bce bch bci bco bcr bcs bcu bdb bdc bdd bde bdh bdi bdo bdr bds bdu be- beb bec bed bee beh bei beo ber bes beu bhb bhc bhd bhe bhh bhi bho bhr bhs bhu bi- bib bic bid bie bih bii bio bir bis biu bob boc bod boe boh boi boo bor bos bou brb brd bre brh bri bro brr brs bru bsb bsc bsd bse bsh bsi bso bsr bss bsu bub buc bud bue buh bui buo bur bus buu c-- cbb cbc cbd cbe cbh cbi cbo cbr cbs cbu ccb ccc ccd cce cch cci cco ccr ccs ccu cdb cdc cdd cde cdh cdi cdo cdr cds cdu ce- ceb cec ced cee ceh cei ceo cer ces ceu ch- chb chc chd che chh chi cho chr chs chu ci- cib cic cid cie cih cii cio cir cis ciu co- cob coc cod coe coh coi coo cor cos cou crb crc crd cre crh cri cro crr crs cru csb csc csd cse csh csi cso csr css csu cub cuc cud cue cuh cui cuo cur cus cuu dbb dbc dbd dbe dbh dbi dbo dbr dbs dbu dcb dcc dcd dce dci dco dcr dcs dcu ddb ddc ddd dde ddh ddi ddo ddr dds ddu de- deb dec ded dee deh dei deo der des deu dh- dhb dhc dhd dhe dhh dhi dho dhr dhs dhu di- dib dic did die dih dii dio dir dis diu dob doc dod doe doh doi doo dor dos dou drb drc drd dre dri dro drr drs dru dsb dsc dsd dse dsh dsi dso dsr dss dsu dub duc dud due duh dui duo dur dus ebb ebc ebd ebe ebh ebi ebo ebr ebs ebu ec- ecb ecc ecd ece ech eci eco ecr ecs ecu ed- edb edc edd ede edh edi edo edr eds edu eeb eec eed eee eeo eer ees ehb ehc ehd ehe ehh ehi eho ehr ehs ehu eib eic eid eie eii eio eir eis eiu eo- eob eoc eod eoe eoh eoi eoo eor eos eou erb erc erd ere erh eri ero err ers eru es- esb esc esd ese esh esi eso esr ess esu eu- eub euc eud eue eui eur eus h-i hbb hbc hbd hbe hbh hbi hbo hbr hbs hbu hcb hcc hcd hce hch hci hco hcr hcs hdb hdc hdd hde hdh hdi hdo hdr hds hdu he- heb hec hed hee heh hei heo her hes heu hhb hhc hhd hhe hhh hhi hho hhr hhs hhu hib hic hid hie hih hii hio hir his hiu hob hoc hod hoe hoh hoi hoo hor hos hou hr- hrb hrc hrd hre hrh hri hro hrr hrs hru hsb hsc hsd hse hsh hsi hsr hss hsu hub huc hud hue huh hui huo hur hus huu i-d ibb ibc ibd ibe ibh ibi ibo ibr ibs ibu icb icc icd ice ich ici ico icr ics icu idb idc idd ide idh idi ido idr ids idu ie- iec ied iee iei ier ies ihb ihc ihd ihe ihh ihi iho ihr ihs ihu iib iic iid iie iih iii iio iir iis iiu io- iob ioc iod ioe ioh ioi ioo ior ios iou ir- irb irc ird ire iri iro irr irs iru is- isb isc isd ise ish isi iso isr iss isu iu- iub iuc iud iue iui iur ius o-i ob- obb obc obd obe obh obi obo obr obs obu oc- ocb occ ocd och oci oco ocr ocs ocu odb odc odd ode odh odi odo odr ods odu oeb oec oed oee oeh oei oeo oer oes ohc ohd ohe ohh ohi oho ohr ohs ohu oib oic oid oie oii oio oir ois oiu oo- oob ooc ood ooh ooi ooo oor oos or- orb orc ord ore orh ori oro orr ors oru os- osb osc osd ose osh osi oso osr oss osu ou- ouc oud oue ouh oui ouo our ous rbb rbc rbd rbe rbh rbi rbo rbr rbs rbu rcb rcc rcd rce rch rci rco rcr rcs rcu rdb rdc rdd rde rdh rdi rdo rdr rds rdu re- reb rec red ree reh rei reo rer res reu rh- rhb rhc rhd rhe rhh rhi rho rhr rhs rhu rib ric rid rie rih rii rio rir ris rob roc rod roe roh roi roo ror ros rou rrb rrc rrd rrh rri rrr rrs rru rsb rsc rsd rse rsh rsi rso rsr rss rsu rub ruc rud rue ruh rui ruo rur rus ruu sbb sbc sbd sbe sbh sbi sbo sbr sbs sbu scb scc scd sce sch sci sco scr scs scu sdb sdc sdd sde sdh sdi sdo sdr sds sdu se- seb sec sed see seh sei seo ser ses seu sh- shb shc shd she shh shi sho shr shs shu sib sic sid sie sih sii sio sir sis siu sob soc sod soe soh soi soo sor sos sou sr- srb src srd sre srh sri sro srr srs ss- ssb ssc ssd sse ssh ssi sso ssr sss ssu sub suc sud sue suh sui suo sur sus suu ubb ubc ube ubh ubi ubo ubr ubs ubu ucb ucc ucd uce uch uci uco ucr ucs ucu udb udc udd ude udi udo udr uds udu ueb uec ued uee ueh uei uer ues uhb uhc uhd uhe uhh uhi uho uhr uhs uhu uib uic uid uie uii uio uir uis uiu uob uoc uod uoe uoo uor uos ur- urb urc urd ure uri uro urr urs uru usb usc usd use ush usi uso usr uss usu uuc uue uur uus uuu