a-a a-c a-z aaa aac aad aag aao aav aaz ac- aca acc acd acg aco acv acz ad- ada adc add adg ado adv adz ag- aga agc agd agg ago agv agz aoa aoc aod aog aoo aov av- ava avc avd avg avo avz az- aza azd azg azo azz c-- caa cac cad cag cao cav caz cca ccc ccd ccg cco ccv ccz cda cdc cdd cdg cdo cdv cdz cga cgc cgd cgg cgo cgv co- coa coc cod cog coo cov coz cva cvc cvd cvg cvo cvv cvz cz- czc czd czo daa dac dad dag dao dav daz dca dcc dcd dcg dco dcv dda ddc ddd ddg ddo ddz dga dgc dgd dgg dgz doa doc dod dog doo dov doz dva dvc dvd dvg dza dzd dzo g-d gaa gac gad gag gao gav gaz gca gcc gcd gcg gco gda gdc gdd gdo gdv gga ggc ggd ggg ggo ggv ggz goa goc god gog goo gov goz gva gvc gvd gvg gvo gza gzo oaa oac oad oag oao oav oc- oca occ ocd ocg oco ocv ocz oda odc odd odg odo odv oga ogc ogd ogg ogo oo- ooa ooc ood oog ooo oov ov- ova ovc ovd ovo ovv oza ozo ozz v-a vaa vac vad vag vao vav vaz vca vcc vcd vco vdc vdd vdg vdo vdv vga vgc vgg vgo vgz voa voc vod vog voo vov voz vva vvc vvg vvo vvv vvz z-g zaa zac zad zag zao zav zaz zco zdv zgg zgv zo- zoa zoc zod zog zoo zzz