-nik bbbb bbci bbdd bbin bcbc bccc bcci bcnu bcuc bdbc bddc bdii bdin bibb bibi bicc bici bick bidi bidu biin biku bin- binc bind bini bink binn binu bnib bnin bubb bubi bubu bucc buci buck bucu budb budd budi budu buic buid buik buin buiu buki bukk buku bunb bund buni bunk bunn bunu c-cd cbbc cbcc cbcn cbcu cbdb cbdc cbdi cbdn cbid cbkn cbnd ccbc ccbn cccb cccc ccci cccu ccdc ccdi ccdn ccic ccid ccii ccnb ccnc ccni ccnu ccuc cddb cdic cdii cdnb cdnc cibc cibi cicc cici cicu cidc cidi ciid ciii cin- cinc cind cini cink ciuc ckbc ckbi ckck ckdu ckin cknb cknc cnbc cnci cndd cnib cnic cnid cnki cub- cubb cubi cucc cuci cuck cucn cudi cui- cuin cuk- cund dbcc dcbc dccb dccc dcci dccu dcdb dcii dddd ddub dibb dici dick didi didu diii diki diku din- dinc dini dink dinn dinu dkdc dkid dnic dnuk dub- dubb dubc dubu duck dudd dudu duid duin duki duku dunc dunk dunn ibid icbc icbd iccb iccc icci iccn iccu icdc icdd icnb icnc icub idic idid idin idku idub idun iicd iiii iiuc ikid ikin ikki inbd incb incd inci ind- indc indi indu inid inkd inki inni innu inui inuk inun iucc iuiu k-ci k-id kbbb kbbc kbbd kbbi kbbk kbbu kbcb kbci kbck kbcu kbdb kbdi kbdn kbib kbic kbid kbik kbiu kbkb kbkk kbnd kbnn kbnu kbub kbuc kbud kbuk kbun kbuu kcbc kcbd kcbi kcbk kcbu kccb kccc kccd kcci kcck kccu kcdc kcdd kcdi kcdu kcic kcid kcii kcin kciu kckc kckk kckn kcnb kcnd kcni kcub kcui kcuk kdbb kdbi kdbn kdcc kdcd kddb kddc kddd kddi kddk kdic kdkb kdkd kdkk kdkn kdnd kdni kdnk kdnn kdub kduc kdun kibb kibc kibi kibu kicb kicc kicd kick kidb kidd kidi kidk kidu kiic kiid kiii kiik kiiu kikc kikd kiki kikk kiku kin- kinb kinc kind kini kink kinn kinu kiun kiuu kkbb kkbd kkbi kkbn kkcb kkcd kkci kkck kkcn kkdc kkdd kkic kkid kkik kkin kkkk kknb kknd kkni kknn kknu kkuu knbb knbc knbn knbu kncb knci knck kncn kncu kndb kndc kndd kndi kndk kndn kndu knib knic knid knik knin knki knkk knnb knnd knnk knub knud knui knuk kubb kubc kubd kubu kucb kucc kucd kuci kudd kudi kudu kuic kuik kuin kuki kukk kukn kuku kunc kund kuni kunk kunu kuub kuuk kuuu n-ii nbbc nbcc nbci nbic ncbc ncbi nccc ncci nccn nccu ncdc ncdn ncdu ncid ncnc ncnd ncuk ndcc nddb ndic nibi nicc nicd nici nick nicu nidd nidi niiu nikc niki niku nind nini nndb nnnn nubc nubi nubk nuci nuck nucu nudc nudd nudi nuik nuin nuki nuku nunc nunk nunn nuuk ubbi ubic ubid ubii ubik ubud ucbc ucci ucdc ucdd ucin udbc uddi udic udid udin uduk udun ukcc uknc unbd uncc unci undi uni- unic unii unik unin unkn unni uuni uuuu