c-cd cccc ccci ccdc ccdi ccic ccid ccii ccoc ccod cctc cctt cdic cdii cdio cdot cicc cici cico cict cidc cidi cidt ciid ciii ciit ciko citi cito citt ckck ckco ckdo ckoc ckoi ckoo ckot cock coco coct codd codi coit cok- coko cood cook coot cotc coti coto cott ctic ctot dccc dcci dcct dcii dcio dctc dddd ddoc ddot dici dick dico dict didi dido diii diki diko dioc diot diti dito ditt dkdc dkid doci dock doco doct dod- dodd dodi dodo doid doit doki doko dood dook doot dotd doti dotk doto dott dtcc dtki dtot iccc icci icco icct icdc icdd icoc icod iddo idic idid idio idoc iicd iiii iiio iiit iioi iioo iitt ikid ikki ikko ikoo ioci iod- iodd iodo ioii ioio ioit ioko iooi iooo ioto itdo itic itko itoi itoo itto k-ci k-id kccc kccd kcci kcck kcct kcdc kcdd kcdi kcic kcid kcii kcit kckc kckk kcko kcot kctc kcti kcto kdcc kdcd kdco kddc kddd kddi kddk kdic kdio kdkd kdkk kdko kdkt kdoc kdok kdot kdtd kdti kicc kicd kick kict kidd kidi kidk kido kiic kiid kiii kiik kiit kikc kikd kiki kikk kiko kikt kioc kiod kioi kiok kioo kiot kitc kiti kito kitt kkcd kkci kkck kkco kkct kkdc kkdd kkdo kkdt kkic kkid kkik kkit kkkk kkoo kkot kktc kktk kocd koci kock koct kodi kodk kodo kodt koii koit kokc koki kokk koko kooc kooi kook kooo koot kotc kotd koti kotk koto kott ktcc ktck ktco ktdc ktdd ktdk ktdo ktic ktik ktkc ktkk ktko ktkt ktoc ktok ktoo ktot kttc ktti kttk ktto kttt occc occi occt oct- octi octo odci oddd oddi odic odio odoo odot oici oick oido oiii oiko oitc oiti okic okko okok okot okto oodi ooid oooo otcd otic otit oto- otok otoo otti otto tccc tcdd tctc ticc tick tico tidc tidd tiit tiki tiko titc titi tito titt tkod toci tock toco todd todi todo todt toid toit toki toko tood took toot totc totd toti toto tott tttt