a-ak a-ii aaaa aaac aaai aaca aacc aaci aack aaic aaii aaka acaa acac acag acai acca accc acci acga acgi aci- acia acic agac agag agai agca agcc agga aggi agia agic agig agii aiai aica aicc aiga aiia aiic aika aiki akaa akai akca akia akik akka akki caaa caac cac- caca cacc caci cack caga cagg cagi caia caic caik caka ccaa ccac ccag ccai ccca cccc ccci ccga ccgc ccic ccii cgac cgcc cgcg ciaa ciak cica cicc cici ciga cigi ciia ciii cika ckac ckck ckga gack gaga gagg gagi gaia gaig gaki gc-c gcaa gccc gcic gcii gggg giaa giac giai gica gick giga gigg gigi iaaa iaac iaai iaca iacc iaia icaa icac icag icai icca iccc icci icga icgc igac igcc igga igia igkc iiac iica iiii ikig ikki k-ci kaaa kaag kaai kaak kacc kaci kag- kaga kagc kagg kagi kaia kaic kaig kaii kaik kaka kakc kaki kakk kcaa kcac kcai kcca kccc kcci kcck kcgc kcgi kcic kcii kckc kckk kgac kgak kgcc kgga kggg kggi kgia kiac kiai kica kicc kicg kick kiga kigc kiia kiic kiii kiik kika kikc kiki kikk kkaa kkac kkag kkai kkci kkck kkia kkic kkik kkkk