cccc ccci ccgc ccgt ccic ccii ccir ccoc ccrc ccrg ccri ccrt cctc cctt cgcc cgcg cgro cicc cici cico cicr cict cigi ciii ciit ciko cikr cior circ ciri cirk ciro cirr cirt citg citi cito citt ckck ckco ckgo ckoc ckoi ckoo ckor ckot ckrc cock coco coct cogi cogo coir coit cok- coko cook coot cor- corc corg cori cork coro corr cort cotc coti coto cott crcc crcr cric crig crik crit crkc croc crok croo cror crot crrt crtc ctic ctor ctot ctrc gc-c gccc gcic gcii gcrg gctc gggg gick gicr gigg gigi gigo giog gioi girg giri girk giro girr girt gito gocr gogi gogo goit goog gooi gook goor goot gorg gori goro gorr gort goti goto gott grcc gric grig grit groc grog groi grok groo gror grot grrr grtc gtco gtcr i-go iccc icci icco iccr icct icgc icoc icor icrc icrr icrt igcc igkc igoo igor igot igri iiii iiio iiit iioi iioo iirc iitr iitt ikig ikki ikko ikoo ikri iocg ioci iogt ioii ioio ioit ioko iooi iooo iorg iori ioto ircc ircg iri- iric irig irio irki iroc irrc irri irti itgc itgo itic itko itoi itoo itor itri itto k-ci kccc kcci kcck kccr kcct kcgc kcgi kcgr kcic kcii kcir kcit kckc kckk kcko kckr kcog kcor kcot kcrc kcrg kcri kcro kcrr kcrt kctc kcti kcto kgcc kgcr kggg kggi kggo kggr kgio kgir kgor kgot kgrc kgrg kgri kgrk kgro kgrr kgrt kgtk kgto kicc kicg kick kicr kict kigc kigo kiic kiii kiik kiit kikc kiki kikk kiko kikr kikt kioc kioi kiok kioo kiot kirc kiri kirk kiro kirr kirt kitc kitg kiti kito kitr kitt kkci kkck kkco kkcr kkct kkgo kkgr kkic kkik kkit kkkk kkoo kkor kkot kkrc kkrk kkro kkrr kkrt kktc kktk koci kock koct kogg kogi kogo kogt koii koir koit kokc koki kokk koko kokr kooc koog kooi kook kooo koor koot korc korg kori kork koro korr kort kotc koti kotk koto kotr kott krcc krcg krci krco krgi krgt krik krio krit krkc krki krkk krko krkr kroc krog kroi krok kroo kror krrc krrg krri krrk krro krrr krrt krtc krti krtk krto krtr ktcc ktck ktco ktcr ktgg ktgo ktgr ktic ktig ktik ktkc ktkk ktko ktkr ktkt ktoc ktok ktoo ktor ktot ktrc ktrg ktri ktrk ktro ktrr ktrt kttc kttg ktti kttk ktto kttr kttt occc occi occt ocro ocrr oct- octi octo oggi ogog ogoi ogri ogro oici oick oigo oiii oiko oirt oitc oiti okgo okic okir okko okok okor okot okro okto oocr oooo oort orci orco orgo ori- oric orig orio orit orko oro- orok oror orot orri orro ortc orto otic otit oto- otog otok otoo otor otro otti otto rccc rcgc rcic rcrg rctc rctg rcti rgit rgtr ricc rick rico rict rigg rigi rigo riki rikk riot riri riti rito ritt rocc rock roco rogg rogi rogo roig roik roio roir roit roki rokk roko rokr roog rooi rook roor root rorc rori rork roro rort rotc rotg roti rotk roto rotr rott rrrr rtcc rtcg rtkg tccc tctc tgcc tgtc ticc tick tico tigi tigr tiit tiki tiko tiri tiro tirr titc titi tito titt tkkg toci tock toco togo togr togt toit toki toko took toor toot torc torg tori tork toro torr tort totc toti toto totr tott trcc tri- tric trig trik trio trit troc trog troi troo trot trtc trtr ttkg tttt