-ic b-u bbb bbc bbd bbi bbo bbr bbs bbu bcb bcc bcd bci bco bcr bcs bcu bdb bdc bdd bdi bdo bdr bds bdu bi- bib bic bid bii bio bir bis biu bob boc bod boi boo bor bos bou brb brd bri bro brr brs bru bsb bsc bsd bsi bso bsr bss bsu bub buc bud bui buo bur bus buu c-- cbb cbc cbd cbi cbo cbr cbs cbu ccb ccc ccd cci cco ccr ccs ccu cdb cdc cdd cdi cdo cdr cds cdu ci- cib cic cid cii cio cir cis ciu co- cob coc cod coi coo cor cos cou crb crc crd cri cro crr crs cru csb csc csd csi cso csr css csu cub cuc cud cui cuo cur cus cuu dbb dbc dbd dbi dbo dbr dbs dbu dcb dcc dcd dci dco dcr dcs dcu ddb ddc ddd ddi ddo ddr dds ddu di- dib dic did dii dio dir dis diu dob doc dod doi doo dor dos dou drb drc drd dri dro drr drs dru dsb dsc dsd dsi dso dsr dss dsu dub duc dud dui duo dur dus i-d ibb ibc ibd ibi ibo ibr ibs ibu icb icc icd ici ico icr ics icu idb idc idd idi ido idr ids idu iib iic iid iii iio iir iis iiu io- iob ioc iod ioi ioo ior ios iou ir- irb irc ird iri iro irr irs iru is- isb isc isd isi iso isr iss isu iu- iub iuc iud iui iur ius o-i ob- obb obc obd obi obo obr obs obu oc- ocb occ ocd oci oco ocr ocs ocu odb odc odd odi odo odr ods odu oib oic oid oii oio oir ois oiu oo- oob ooc ood ooi ooo oor oos or- orb orc ord ori oro orr ors oru os- osb osc osd osi oso osr oss osu ou- ouc oud oui ouo our ous rbb rbc rbd rbi rbo rbr rbs rbu rcb rcc rcd rci rco rcr rcs rcu rdb rdc rdd rdi rdo rdr rds rdu rib ric rid rii rio rir ris rob roc rod roi roo ror ros rou rrb rrc rrd rri rrr rrs rru rsb rsc rsd rsi rso rsr rss rsu rub ruc rud rui ruo rur rus ruu sbb sbc sbd sbi sbo sbr sbs sbu scb scc scd sci sco scr scs scu sdb sdc sdd sdi sdo sdr sds sdu sib sic sid sii sio sir sis siu sob soc sod soi soo sor sos sou sr- srb src srd sri sro srr srs ss- ssb ssc ssd ssi sso ssr sss ssu sub suc sud sui suo sur sus suu ubb ubc ubi ubo ubr ubs ubu ucb ucc ucd uci uco ucr ucs ucu udb udc udd udi udo udr uds udu uib uic uid uii uio uir uis uiu uob uoc uod uoo uor uos ur- urb urc urd uri uro urr urs uru usb usc usd usi uso usr uss usu uuc uur uus uuu

-ous bbbb bbbs bbci bbdd bbdo bbrc bcbc bcbs bccc bcci bccs bcds bcis bcor bcos bcrs bcru bcsc bcss bcuc bd-r bdbc bddc bdii bdos bdsd bibb bibi bibo bibs bicc bici bico bics bidi bido bidr bids bidu biis bio- bioc bioi bios biou birb bird biri biro birr birs biru bis- bisc bisd biso biss bisu bobb bobi bobo bobs bobu boco bocs bocu bodb bodi bodo bods bodu boi- boid boii bois boiu boob booc bood boor boos bor- bord bori boro borr bors boru bosc bosi boso boss bosu boud bour bous brcb brdo brds bric brid brio bris brob broc brod broo bror bros brou brrr brrs brsb brsr bruc brud brus bsbd bsci bscs bsic bsod bsos bsrd bssc bssd bubb bubi bubo bubs bubu bucc buci buco bucs bucu budb budd budi budo buds budu buic buid buir buis buiu bur- burb burd buri buro burr burs buru busc busi buss busu buus c-bo c-cd cbbc cbbs cbcc cbcr cbcs cbcu cbdb cbdc cbdi cbdo cbds cbid cbir cbrd cbsc cbsi cbus ccbc cccb cccc ccci cccs cccu ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis ccob ccoc ccod ccrc ccri ccrs ccsd ccsi ccss ccuc ccus cd-r cdcs cddb cddr cdic cdii cdio cdis cdos cdrs cdss cibc cibi cibo cicc cici cico cicr cics cicu cidc cidi cidr cids ciid ciii ciis ciob cior cios cirb circ ciri ciro cirr cirs cis- cisc cisd cisr ciss ciuc cius cobb cobi cobo cobs cobu coco cocu codd codi cods coir cois coob cood coos cor- corb corc cord cori coro corr cors cosc cosi coso coss coub coud cour cous crbc crbu crcc crcr crdc crib cric cris criu crob croc crod croo cror crss crub crud crus cscb cscc cscd csci csco cscr cscs csdb csdr csib csid csio csir csis csob csor csos csrc csrd csrs cssd cssr csur csus cub- cubb cubi cubs cucc cuci cudi cuds cui- cuir cuis curb curd curi curo curr curs cusb cusd cuso cuss cusu d-bo dbcc dbcs dbos dbrs dbss dbus dcbc dccb dccc dcci dccs dccu dcdb dcds dcii dcio dcis dcos dcsc dcss dddd ddoc ddrc ddss ddub dibb dibo dibs dici dico didi dido dids didu diii diis dioc dior dios diou dird dirr dirs dis- disc disd disi diso diss dius dobb dobi dobs dobu doci doco docs docu dod- dodd dodi dodo dods doid dois doob dood door doos dorc dord dori doro dorr dors doru dosi doso doss doub douc doud dour dous drbc drib dric drob drod drou drrs drub drui drus druu dsbc dscc dscr dscs dsdr dsos dsrc dsri dsrr dssc dssi dub- dubb dubc dubs dubu duco ducs dudd dudo duds dudu duid duir duis duo- duos duri duro duru dusi duur ibcs ibdo ibid ibis ibos ibrc ibrd ibri ibro ibss ibus