a-a a-c a-t a-z aaa aac aak aar aat aaz ac- aca acc ack acr act acz aka akc akk akr ar- ara arc ark arr art arz at- ata atc atr att atz az- aza azt azz c-- caa cac cak car cat caz cca ccc cck ccr cct ccz cka ckc ckt cra crc crk crr crt crz cta ctc ctk ctr ctt ctz cz- czc czk czt k-t k-z ka- kaa kac kak kar kat kaz kca kcc kck kcr kct kkc kkk kkr kkt kra krc krk krr krt kta ktc ktk ktr ktt ra- raa rac rak rar rat raz rca rcc rcr rct rkc rkk rkt rkz rra rrc rrk rrr rrt rta rtc rtk rtr rtt rtz rza taa tac tak tar tat taz tca tcc tck tcr tct tka tkc tkk tkr tkt tkz tra trc trk trr trt trz tta ttc ttk ttr ttt tza zaa zac zak zar zat zaz zka zta ztr zzr zzt zzz