c-cd cccc ccci cccs cccu ccdc ccdi ccds ccic ccid ccii ccis ccsd ccsi ccss ccuc ccus cdcs cdic cdii cdis cdss cicc cici cics cicu cidc cidi cids ciid ciii ciis cis- cisc cisd cisk ciss ciuc cius ckck ckcs ckdu cscc cscd csci cscs csid csik csis csks cssd csus cucc cuci cuck cudi cuds cui- cuis cuk- cusd cusk cuss cusu dccc dcci dccs dccu dcds dcii dcis dcsc dcss dddd ddss dici dick didi dids didu diii diis diki diku dis- disc disd disi disk diss dius dkdc dkid dscc dscs dssc dssi duck ducs dudd duds dudu duid duis duki duku dusi dusk iccc icci iccs iccu icdc icdd icis icks icsc icsd icsi icss icus idic idid idis idku idsc idss idus iicd iiii iiis iisc iisd iisi iisu iiuc ikid ikki iksu iscc iscd isci iscs iscu isdc isds isic isis isku issc issi isss issu isus iucc iuds iuiu iusd iuss k-ci k-id kccc kccd kcci kcck kccu kcdc kcdd kcdi kcds kcdu kcic kcid kcii kcis kciu kckc kckk kcsc kcsd kcsi kcss kcsu kcui kcuk kdcc kdcd kddc kddd kddi kddk kdic kdis kdkd kdkk kdsc kdsd kdsk kdss kdsu kduc kdus kicc kicd kick kics kidd kidi kidk kids kidu kiic kiid kiii kiik kiis kiiu kikc kikd kiki kikk kiku kisc kisd kisi kisk kiss kisu kiuu kkcd kkci kkck kkcs kkdc kkdd kkic kkid kkik kkkk kksd kksi kkss kksu kkus kkuu ksci ksck kscs kscu ksdc ksdi ksdk ksds ksid ksii ksik ksis kskd kskk ksks ksku kssi ksss kssu ksud ksui ksuu kucc kucd kuci kudd kudi kudu kuic kuik kuki kukk kuks kuku kusc kusd kusu kuuk kuuu s-ic s-ii sccc sccs scdc scds sci- scic scid scis sck- scsc scsd scsi scsu scud sdcc sddc sdds sdic sdsc sdss sdsu sicc sici sick sics sicu sidd sidi sids siik siki siks siku sisc sisd sisi sisk siss sisu siui sius skic skid skik skis skiu sksd skss skud skui sscc ssci sscs ssdc ssdd ssid ssis sssc sssi ssss suc- succ suci suck sucs sudd sudi suds suid suis suki suks suku sus- susd susi susk suss susu suus ucci ucdc ucdd ucsc ucsd ucsu uddi udds udic udid udsd uduk uisd ukcc uksc us-k uscc uscs usdc usds usis ussc usss ussu usui usus uusi uuuu