a-ak a-ii aaaa aaac aaai aaca aacc aaci aack aaic aaii aaka acaa acac acai acca accc acci aci- acia acic aiai aica aicc aiia aiic aika aiki akaa akai akca akia akik akka akki caaa caac cac- caca cacc caci cack caia caic caik caka ccaa ccac ccai ccca cccc ccci ccic ccii ciaa cica cicc cici ciia ciii cika ckac ckck iaaa iaac iaai iaca iacc iaia icaa icac icai icca iccc icci iiac iica iiii ikki k-ci kaaa kaai kaak kacc kaci kaia kaic kaii kaik kaka kakc kaki kakk kcaa kcac kcai kcca kccc kcci kcck kcic kcii kckc kckk kiac kiai kica kicc kick kiia kiic kiii kiik kika kikc kiki kikk kkaa kkac kkai kkci kkck kkia kkic kkik kkkk