-ic b-u bbb bbc bbd bbi bbk bbl bbs bbu bcb bcc bcd bci bck bcl bcs bcu bdb bdc bdd bdi bdk bdl bds bdu bi- bib bic bid bii bik bil bis biu bkb bkc bkk bkl bks blb blc bld bli blk bll bls blu bsb bsc bsd bsi bsk bsl bss bsu bub buc bud bui buk bul bus buu c-- cbb cbc cbd cbi cbk cbl cbs cbu ccb ccc ccd cci cck ccl ccs ccu cdb cdc cdd cdi cdk cdl cds cdu ci- cib cic cid cii cik cil cis ciu ckb ckc ckd cki cks cl- clb clc cld cli clk cll cls clu csb csc csd csi csk csl css csu cub cuc cud cui cuk cul cus cuu dbb dbc dbd dbi dbk dbl dbs dbu dcb dcc dcd dci dck dcl dcs dcu ddb ddc ddd ddi ddk ddl dds ddu di- dib dic did dii dik dil dis diu dkb dkc dki dkk dkl dks dku dl- dlb dlc dld dli dlk dll dls dlu dsb dsc dsd dsi dsk dsl dss dsu dub duc dud dui duk dul dus i-d ibb ibc ibd ibi ibk ibl ibs ibu icb icc icd ici ick icl ics icu idb idc idd idi idk idl ids idu iib iic iid iii iil iis iiu ikb ikc iki ikk ikl iks iku il- ilb ilc ild ili ilk ill ils ilu is- isb isc isd isi isk isl iss isu iu- iub iuc iud iui ius kbb kbc kbd kbi kbk kbl kbs kbu kcb kcc kcd kci kck kcl kcs kcu kdb kdc kdk kdl kds kdu kib kic kid kii kik kil kis kiu kkb kkc kki kkk kkl kks kku kl- klb klc kld kli kls klu ksb ksc ksd ksi ksk ksl kss ksu kub kuc kud kui kuk kul kus kuu lbb lbc lbd lbi lbk lbl lbs lbu lcb lcc lcd lci lck lcl lcs lcu ldb ldc ldd ldi ldk ldl lds ldu lib lic lid lii lik lil lis liu lkb lkl lks llb llc lld lli llk lll lls llu lsb lsc lsd lsi lsk lsl lss lsu lub luc lud lui luk lul lus luu sbb sbc sbd sbi sbk sbl sbs sbu scb scc scd sci sck scl scs scu sdb sdc sdd sdi sdk sdl sds sdu sib sic sid sii sik sil sis siu sk- skb skc skd ski skk skl sks sku slb slc sld sli slk sll sls slu ss- ssb ssc ssd ssi ssk ssl sss ssu sub suc sud sui suk sul sus suu ubb ubc ubi ubk ubl ubs ubu ucb ucc ucd uci uck ucl ucs ucu udb udc udd udi udk udl uds udu uib uic uid uii uil uis uiu ukb ukc uki ukk ukl uku ulb ulc uld uli ulk ull uls ulu usb usc usd usi usk usl uss usu uuc uus uuu

bbbb bbbs bbci bbdd bblb bbls bcbc bcbs bccc bcci bccl bccs bcds bcis bcsc bcsl bcss bcuc bdbc bddc bdii bdls bdsd bibb bibi bibl bibs bicc bici bick bics bidi bids bidu biis biku bild bili bilk bill bils bilu bis- bisc bisd bisk bisl biss bisu blcu bldc blic blik blis blkb blkd blls blss blub blud blus bsbd bsci bscs bsdl bsic bslc bssc bssd bubb bubi bubs bubu bucc buci buck bucs bucu budb budd budi budl buds budu buic buid buik buis buiu buki bukk buku bulb buld buli bulk bull buls bulu busc busi busk buss busu buus c-cd cbbc cbbs cbcc cbcl cbcs cbcu cbdb cbdc cbdi cbds cbid cbkl cblb cblc cbsc cbsi cbus ccbc cccb cccc ccci cccl cccs cccu ccdc ccdi ccds ccic ccid ccii ccil ccis cclc ccli ccls ccsd ccsi ccsl ccss ccuc ccus cdcs cddb cddl cdic cdii cdis cdli cdls cdss cibc cibi cicc cici cics cicu cidc cidi cids ciid ciii ciis cili cilk cill cils cis- cisc cisd cisk cisl ciss ciuc cius ckbc ckbi ckck ckcl ckcs ckdu cksb cksl clcd cldc clib clic clii clik clis clsc club clud cscb cscc cscd csci cscl cscs csdb csib csid csik csis csks csld cslu cssd csus cub- cubb cubi cubs cucc cuci cuck cudi cuds cui- cuil cuis cuk- culb culc culd culk cull culs cusb cusd cusk cuss cusu dbcc dbcs dbls dbss dbus dcbc dccb dccc dcci dccl dccs dccu dcdb dcds dcii dcil dcis dcli dcls dcsc dcss dddd ddlc ddss ddub dibb dibs dici dick didi dids didu diii diis diki diku dili dilk dill dils dis- disc disd disi disk diss dius dkdc dkid dlbd dlcs dlib dlii dlil dlis dsbc dscc dscs dsls dssc dssi dub- dubb dubc dubs dubu duck ducs dudd duds dudu duid duil duis duki duku dulc duli dull dulu dusi dusk duul ibcs ibid ibis ibss ibus icbc icbd icbs iccb iccc icci iccl iccs iccu icdc icdd icdl icis icks icll icsb icsc icsd icsi icss icub icus idic idid idil idis idku idli idls idsc idss idub idus iicd iiii iiis iisc iisd iisi iisu iiuc ikid ikki iksu ilbc ilcd ilic ilis ilki ilks ilku ill- illd illi ills ilud ilus isbd isbl iscc iscd isci iscs iscu isdb isdc isds isic isil isis isku isls issc issi isss issu isus iucc iuds iuiu iusd iuss k-ci k-id kbbb kbbc kbbd kbbi kbbk kbbl kbbs kbbu kbcb kbci kbck kbcl kbcs kbcu kbdb kbdi kbdl kbds kbib kbic kbid kbik kbil kbis kbiu kbkb kbkk kbkl kblb kbld kbll kbls kblu kbsb kbsi kbsk kbss kbsu kbub kbuc kbud kbuk kbul kbus kbuu kcbc kcbd kcbi kcbk kcbl kcbs kcbu kccb kccc kccd kcci kcck kccl kccu kcdc kcdd kcdi kcds kcdu kcic kcid kcii kcil kcis kciu kckc kckk kckl kclc kcli kclk kcll kcls kclu kcsb kcsc kcsd kcsi kcss kcsu kcub kcui kcuk kcul kdbb kdbi kdbl kdbs kdcc kdcd