-ic b-u bbb bbc bbd bbi bbk bbq bbr bbu bcb bcc bcd bci bck bcq bcr bcu bdb bdc bdd bdi bdk bdq bdr bdu bi- bib bic bid bii bik bir biu bkb bkc bkk bkq bkr bqc bqd brb brd bri brk brq brr bru bub buc bud bui buk bur buu c-- cbb cbc cbd cbi cbk cbq cbr cbu ccb ccc ccd cci cck ccr ccu cdb cdc cdd cdi cdk cdq cdr cdu ci- cib cic cid cii cik ciq cir ciu ckb ckc ckd cki cqb cqc cqd cqi crb crc crd cri crk crq crr cru cub cuc cud cui cuk cuq cur cuu dbb dbc dbd dbi dbk dbq dbr dbu dcb dcc dcd dci dck dcr dcu ddb ddc ddd ddi ddk ddq ddr ddu di- dib dic did dii dik diq dir diu dkb dkc dki dkk dkr dku drb drc drd dri drk drq drr dru dub duc dud dui duk dur i-d ibb ibc ibd ibi ibk ibr ibu icb icc icd ici ick icq icr icu idb idc idd idi idk idq idr idu iib iic iid iii iir iiu ikb ikc iki ikk ikr iku iqc iqd iqu ir- irb irc ird iri irk irq irr iru iu- iub iuc iud iui iur kbb kbc kbd kbi kbk kbr kbu kcb kcc kcd kci kck kcr kcu kdb kdc kdk kdr kdu kib kic kid kii kik kir kiu kkb kkc kki kkk kkr kku krc krd kri krk krr kru kub kuc kud kui kuk kur kuu qbc qbd qbq qcc qcd qci qdb qdr qic qid qik qir qiu qki qqk qqq qqu qrb qrc qri qru qu- qud qui qur rbb rbc rbd rbi rbk rbr rbu rcb rcc rcd rci rcr rcu rdb rdc rdd rdi rdr rdu rib ric rid rii rik riq rir rkb rkc rkk rku rqc rrb rrc rrd rri rrk rrq rrr rru rub ruc rud rui ruk rur ruu ubb ubc ubi ubk ubr ubu ucb ucc ucd uci uck ucr ucu udb udc udd udi udk udr udu uib uic uid uii uiq uir uiu ukb ukc uki ukk ukr uku ur- urb urc urd uri urk urr uru uuc uur uuu

bbbb bbbq bbci bbdd bbrc bcbc bccc bcci bcru bcuc bd-r bdbc bddc bdii bibb bibi bicc bici bick bidi bidr bidu biku biqi birb bird biri birk birr biru brcb bric brid brik briq brkb brrr bruc brud bubb bubi bubq bubu bucc buci buck bucu budb budd budi budu buic buid buik buir buiu buki bukk buku bur- burb burd buri burk burr buru c-cd cbbc cbcc cbcr cbcu cbdb cbdc cbdi cbid cbir cbkr cbqi cbrd ccbc cccb cccc ccci cccu ccdc ccdi ccdr ccic ccid ccii ccir ccrc ccri ccuc cd-r cddb cddr cdic cdii cibc cibi cicc cici cicq cicr cicu cidc cidi cidr ciid ciii cikr cirb circ ciri cirk cirr ciuc ckbc ckbi ckck ckdq ckdu ckrc ckrd crbc crbu crcc crcr crdc crib cric crik criu crkc crub crud cruk cub- cubb cubi cucc cuci cuck cucq cudi cui- cuir cuk- curb curd curi curr dbcc dcbc dccb dccc dcci dccu dcdb dcii dcrk dddd ddrc ddub dibb dici dick didi didu diii diki diku dird dirk dirr dkdc dkid dqcd dqdb drbc drib dric driq drub drui druk druu dub- dubb dubc dubu duck dudd dudu duid duir duki duku duqu duri durk duru duur ibid ibrc ibrd ibri icbc icbd iccb iccc icci iccr iccu icdc icdd icrc icrr icru icub idcr idic idid idiq idir idku idrc idub iicd iiii iirc iiuc ikid ikki ikri ircc ircd ircu irdc iri- iric irid irki irrc irri iucc iuiu k-ci k-id kbbb kbbc kbbd kbbi kbbk kbbr kbbu kbcb kbci kbck kbcq kbcr kbcu kbdb kbdi kbdr kbib kbic kbid kbik kbiq kbiu kbkb kbkk kbkr kbqb kbqi kbqr kbrb kbrc kbrd kbri kbrk kbrq kbru kbub kbuc kbud kbuk kbur kbuu kcbc kcbd kcbi kcbk kcbq kcbr kcbu kccb kccc kccd kcci kcck kccr kccu kcdc kcdd kcdi kcdq kcdr kcdu kcic kcid kcii kcir kciu kckc kckk kckr kcqq kcrc kcri kcrr kcru kcub kcui kcuk kdbb kdbi kdbr kdcc kdcd kdcq kdcr kddb kddc kddd kddi kddk kddq kddr kdic kdkb kdkd kdkk kdkr kdrb kdri kdub kduc kdur kibb kibc kibi kibr kibu kicb kicc kicd kick kicr kidb kidd kidi kidk kidr kidu kiic kiid kiii kiik kiiu kikc kikd kiki kikk kikr kiku kiqi kiqk kiqq kirb kirc kiri kirk kirq kirr kiru kiur kiuu kkbb kkbd kkbi kkbq kkbr kkcb kkcd kkci kkck kkcq kkcr kkdc kkdd kkdq kkic kkid kkik kkiq kkkk kkqq kkrb kkrc kkrk kkrq kkrr kkuu kqbb kqbk kqbr kqbu kqcd kqck kqcr kqdi kqdr kqib kqic kqik kqiq kqkd kqkk kqqk kqqq kqri kqrk kqrq kqrr kqur krbb krbd krbi krbk krbq krbr krcb krcc krcd krci krcq krcu krdc krdd krdr krdu krib krid krik krkc krkd krki krkk krkq krkr krku krqb krqk krqq krqr krqu krrb krrc krri krrk krrq krrr kruc krui kruk krur kubb kubc kubd kubq kubr kubu kucb kucc kucd kuci kucr kudd kudi kudu kuic kuik kuki kukk kuku kuqi kuqq kurb kurd kuri kurk kurq kurr kuru kuub kuuk kuur kuuu qbic qbik qiku qiru qqqq qubi qucu quib quic quid quik quir qurd quri quu- rbbb rbbr rcbc rccb rccc rcdc rcic rcid rcrd rib- ribu ricc rick ridc ridd ridi riki rikk riku riqq riri rrrr rubb rubi rubu ruci ruck rudd rudi ruid ruki rukk ruku rurc rurd ruri ruru ruud ubbi ubic ubid ubii ubik ubir ubud ucbc ucci ucdc ucdd ucrc udbc uddi udic udid udir uduk uirr ukcc ukrc ukur uqcc urbi urci urdu urib uric urik uriu urri uruk uruq urur uuri uuuu

b-r-k bckdk bibic bibri biddu bidri biduk bidur birck birdu birur brick bridi brkic brrrr bruck brud- bruik bruiu bruri bucci bucic