a-a a-c a-z aaa aac aad aah aao aar aaz ac- aca acc acd ach aco acr acz ad- ada adc add adh ado adr adz aha ahc ahd ahh aho ahr ahz aoa aoc aod aoh aoo aor ar- ara arc ard arh aro arr arz az- aza azd azo azz c-- caa cac cad cah cao car caz cca ccc ccd cch cco ccr ccz cda cdc cdd cdh cdo cdr cdz ch- cha chc chd chh cho chr chz co- coa coc cod coh coo cor coz cra crc crd crh cro crr crz cz- czc czd czo daa dac dad dah dao dar daz dca dcc dcd dco dcr dda ddc ddd ddh ddo ddr ddz dh- dha dhc dhd dhh dho dhr doa doc dod doh doo dor doz dra drc drd dro drr drz dza dzd dzo dzr haa hac had hah hao har haz hca hcc hcd hch hco hcr hda hdc hdd hdh hdo hdr hdz hha hhc hhd hhh hho hhr hhz hoa hoc hod hoh hoo hor hr- hra hrc hrd hrh hro hrr hrz hzd hzo oaa oac oad oah oao oar oc- oca occ ocd och oco ocr ocz oda odc odd odh odo odr oha ohc ohd ohh oho ohr oo- ooa ooc ood ooh ooo oor or- ora orc ord orh oro orr orz oza ozo ozz ra- raa rac rad rah rao rar raz rca rcc rcd rch rco rcr rda rdc rdd rdh rdo rdr rh- rha rhc rhd rhh rho rhr roa roc rod roh roo ror roz rra rrc rrd rrh rrr rza rzo zaa zac zad zah zao zar zaz zco zha zhc zho zhr zo- zoa zoc zod zoo zor zrh zro zzr zzz