a-a a-c a-z aaa aac aag aao aar aaw aaz ac- aca acc acg aco acr acw acz ag- aga agc agg ago agr agw agz aoa aoc aog aoo aor aow ar- ara arc arg aro arr arw arz aw- awa awc awg awo awr aww az- aza azg azo azw azz c-- caa cac cag cao car caw caz cca ccc ccg cco ccr ccw ccz cga cgc cgg cgo cgr cgw co- coa coc cog coo cor cow coz cra crc crg cro crr crw crz cw- cwa cwc cwg cwo cwr cz- czc czo czw gaa gac gag gao gar gaw gaz gca gcc gcg gco gcr gcw gga ggc ggg ggo ggr ggw ggz goa goc gog goo gor gow goz gra grc grg gro grr grw gwa gwc gwg gwr gza gzo gzr oaa oac oag oao oar oaw oc- oca occ ocg oco ocr ocw ocz oga ogc ogg ogo oo- ooa ooc oog ooo oor oow or- ora orc org oro orr orz owa owc owo oww oza ozo ozw ozz ra- raa rac rag rao rar raw raz rca rcc rcg rco rcr rcw rga rgc rgg rgo rgr rgw roa roc rog roo ror row roz rra rrc rrg rrr rwa rwc rwr rza rzo waa wac wag wao war waw waz wca wcc wcg wco wcr wcw wga wgc wgo wgr wgw wgz woa woc wog woo wor wow woz wr- wra wrc wrg wro wrr wrw wwa wwc wwo www wzc z-g zaa zac zag zao zar zaz zco zgg zo- zoa zoc zog zoo zor zow zro zzr zzz