cccc cccp ccoc ccpp cctc cctt ckck ckco ckoc ckoo ckot ckpc cock coco cocp coct cok- coko cook coop coot copo copp copt cotc coto cott cptp ctcp ctot ctpo ctpp kccc kcck kcct kckc kckk kcko kcot kcpc kcpo kcpt kctc kcto kkck kkco kkct kkkk kkoo kkot kkpc kkpk kkpt kktc kktk kock kocp koct kokc kokk koko kokp kooc kook kooo koop koot kopp kopt kotc kotk koto kott kpcc kpkk kpoc kpok kpoo kpop kppc kppk kppo kppp kpto kptt ktcc ktck ktco ktkc ktkk ktko ktkt ktoc ktok ktoo ktop ktot ktpk ktpo ktpt kttc kttk ktto kttp kttt occc occt ocpp oct- octo okko okok okot okpo okto oooo ootp opo- oppo opto oto- otok otoo otpp otto pccc pcpp pock poco poko pook poop poot pop- popc popo popp popt potc poto pott ppcc pppo pppp pptt ptcc ptop pttc pttk tccc tcpo tctc tock toco toko took toot top- topo topp topt totc toto tott tpck tpcp tppp tptp ttcp ttop tttt