cccc ccci ccgc ccgt ccic ccii ccoc cctc cctt cgcc cgcg cicc cici cico cict cigi ciii ciit ciko citg citi cito citt city ckck ckco ckcy ckgo ckoc ckoi ckoo ckot ckoy ckty cock coco coct cogi cogo coit cok- coko coky cook coot cotc coti coto cott coty coyo coyt ctic ctot cyc- cycc cyt- cyto cyy- cyyc gc-c gccc gcic gcii gctc gggg gick gigg gigi gigo giog gioi gito gogi gogo goit goky goog gooi gook goot goti goto gott goty goyt gtco gytt i-go iccc icci icco icct icgc icky icoc igcc iggy igkc igoo igot iiii iiio iiit iioi iioo iitt ikig ikki ikko ikky ikoo iocg ioci iogt ioii ioio ioit ioko iooi iooo ioto itgc itgo itic itko itoi itoo itto itty k-ci kccc kcci kcck kcct kccy kcgc kcgi kcgy kcic kcii kcit kckc kckk kcko kcky kcog kcot kctc kcti kcto kcty kcyk kcyt kcyy kgcc kggg kggi kggo kgio kgot kgtk kgto kicc kicg kick kict kicy kigc kigo kiic kiii kiik kiit kikc kiki kikk kiko kikt kioc kioi kiok kioo kiot kitc kitg kiti kito kitt kity kiyi kiyk kkci kkck kkco kkct kkcy kkgo kkic kkik kkit kkkk kkoo kkot kkoy kktc kktk kkty kkyc kkyy koci kock koct kogg kogi kogo kogt koii koit kokc koki kokk koko koky kooc koog kooi kook kooo koot kotc koti kotk koto kott koty koyo koyt koyy ktcc ktck ktco ktcy ktgg ktgo ktic ktig ktik ktkc ktkk ktko ktkt ktoc ktok ktoo ktot ktoy kttc kttg ktti kttk ktto kttt ktty kycc kyck kyct kygo kykc kykk kyky kyok kyoo kyot kyoy kytc kyti kyto kytt kyty kyyi kyyk kyyo kyyt kyyy occc occi occt oct- octi octo octy oggi oggy ogog ogoi oici oick oigo oiii oiko oitc oiti okgo okic okko okok okot okto okyo ooky oooo ooty otic otit oto- otog otok otoo otoy otti otto otyg tccc tctc tgcc tgtc ticc tick tico tigi tigy tiit tiki tiko tiky titc titi tito titt tiyi tiyo tkkg to-y toci tock toco togo togt toit toki toko toky took toot totc toti toto tott toty toyo toyt ttkg ttoy tttt tyck tyco tyik tyti tyto tytt tyty yccc yctc ygot yiti ykko ykyt yock yogi yogo yoik yoit yoki yoko yoky yook yoot yott yoyo ytky yyyy