-ic b-u bbb bbc bbd bbi bbr bbs bbt bbu bcb bcc bcd bci bcr bcs bct bcu bdb bdc bdd bdi bdr bds bdt bdu bi- bib bic bid bii bir bis bit biu brb brd bri brr brs brt bru bsb bsc bsd bsi bsr bss bst bsu btb btc btd bti btr bts btt btu bub buc bud bui bur bus but buu c-- cbb cbc cbd cbi cbr cbs cbt cbu ccb ccc ccd cci ccr ccs cct ccu cdb cdc cdd cdi cdr cds cdt cdu ci- cib cic cid cii cir cis cit ciu crb crc crd cri crr crs crt cru csb csc csd csi csr css cst csu ctb ctc ctd cti ctr cts ctt ctu cub cuc cud cui cur cus cut cuu dbb dbc dbd dbi dbr dbs dbt dbu dcb dcc dcd dci dcr dcs dct dcu ddb ddc ddd ddi ddr dds ddt ddu di- dib dic did dii dir dis dit diu drb drc drd dri drr drs drt dru dsb dsc dsd dsi dsr dss dst dsu dtb dtc dtd dti dtr dts dtt dtu dub duc dud dui dur dus dut i-d ibb ibc ibd ibi ibr ibs ibt ibu icb icc icd ici icr ics ict icu idb idc idd idi idr ids idt idu iib iic iid iii iir iis iit iiu ir- irb irc ird iri irr irs irt iru is- isb isc isd isi isr iss ist isu itb itc itd iti its itt itu iu- iub iuc iud iui iur ius iut rbb rbc rbd rbi rbr rbs rbt rbu rcb rcc rcd rci rcr rcs rct rcu rdb rdc rdd rdi rdr rds rdt rdu rib ric rid rii rir ris rit rrb rrc rrd rri rrr rrs rrt rru rsb rsc rsd rsi rsr rss rst rsu rtb rtc rtd rti rtr rts rtt rtu rub ruc rud rui rur rus rut ruu sbb sbc sbd sbi sbr sbs sbt sbu scb scc scd sci scr scs sct scu sdb sdc sdd sdi sdr sds sdt sdu sib sic sid sii sir sis sit siu sr- srb src srd sri srr srs srt ss- ssb ssc ssd ssi ssr sss sst ssu stb stc std sti str sts stt stu sub suc sud sui sur sus sut suu tbb tbc tbd tbi tbr tbs tbt tbu tcb tcc tcd tci tcr tcs tct tcu tdb tdc tdd tdi tdr tds tdt tdu tib tic tid tii tir tis tit tiu trb trc trd tri trr trs trt tru tsb tsc tsd tsi tsr tss tst tsu ttb ttc ttd tti ttr tts ttt ttu tub tuc tud tui tur tus tut tuu ubb ubc ubi ubr ubs ubt ubu ucb ucc ucd uci ucr ucs uct ucu udb udc udd udi udr uds udt udu uib uic uid uii uir uis uit uiu ur- urb urc urd uri urr urs urt uru usb usc usd usi usr uss ust usu utb utc utd uti utr uts utt utu uuc uur uus uut uuu

bbbb bbbs bbci bbdd bbrc bcbc bcbs bccc bcci bccs bcds bcis bcit bcrs bcru bcsc bcss bctc bcts bcuc bd-r bdbc bddc bdii bdsd bibb bibi bibs bicc bici bics bidi bidr bids bidu biis birb bird biri birr birs birt biru bis- bisc bisd biss bist bisu bitc bitd bits bitt bitu brcb brds brdt bric brid bris brit brrr brrs brsb brsr brst brtc bruc brud brus brut bsbd bsci bscs bsic bsrd bssc bssd bsts btcc btcs btdt btrc btrt btss bttb btus bubb bubi bubs bubu bucc buci bucs bucu budb budd budi buds budu buic buid buir buis buit buiu bur- burb burd buri burr burs burt buru busc busi buss bust busu but- buti buts butt buus c-cd cbbc cbbs cbcc cbcr cbcs cbct cbcu cbdb cbdc cbdi cbds cbid cbir cbit cbrd cbrt cbsc cbsi cbtc cbus ccbc cccb cccc ccci cccs cccu ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis ccrc ccri ccrs ccrt ccsd ccsi ccss ccst cctb cctc cctt ccuc ccus ccut cd-r cdcs cddb cddr cdic cdii cdis cdrs cdss cibc cibi cicc cici cicr cics cict cicu cidc cidi cidr cids cidt ciid ciii ciis ciit cirb circ ciri cirr cirs cirt cis- cisc cisd cisr ciss cist citb citi cits citt citu ciuc cius crbc crbu crcc crcr crdc crib cric cris crit criu crrt crss crst crtc crts crub crud crus crut cscb cscc cscd csci cscr cscs csdb csdr csib csid csir csis csit csrc csrd csrs cssd cssr cstc cstd cstr csts csur csus ctbi ctbs ctic ctrc ctrs ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cudi cuds cui- cuir cuis cuit curb curd curi curr curs curt cusb cusd cuss cust cusu cut- cutc cuts cutt dbcc dbcs dbit dbrs dbss dbtt dbus dcbc dccb dccc dcci dccs dcct dccu dcdb dcds dcii dcis dcsc dcss dctc dcts dddd ddrc ddss ddts ddub dibb dibs dici dict didi dids didu diii diis dird dirr dirs dirt dis- disc disd disi diss dist diti dits ditt dius drbc drib dric drit drrs drub drui drus drut druu dsbc dscc dscr dscs dsdr dsrc dsri dsrr dssc dssi dsst dstc dsts dtcc dtss dub- dubb dubc dubs dubu ducs duct dudd duds dudu duid duir duis duit duri durt duru dusi dust duts duur duut ibcs ibid ibis ibrc ibrd ibri ibss ibtb ibtc ibts ibus icbc icbd icbs iccb iccc icci iccr iccs icct iccu icdc icdd icis icrc icrr icrs icrt icru icsb icsc icsd icsi icsr icss icst icts icub icus idcr idic idid idir idis idrc idsc idss idts idub idus iicd iiii iiis iiit iirc iirs iisc iisd iisi iisr iist iisu iitr iitt iiuc ircc ircd ircs ircu irdc irds iri- iric irid iris irrc irri irrs irti irts irus isbd isbt iscc iscd isci iscr iscs isct iscu