a-a a-b a-i a-z aaa aab aah aai aao aap aaz ab- aba abb abh abi abo abp abz aha ahb ahh ahi aho ahp ahz ai- aia aib aih aii aio aip aiz aoa aob aoh aoi aoo aop ap- apa apb aph api apo app az- aza azb azi azo azp azz b-p baa bab bah bai bao bap baz bba bbb bbh bbi bbo bbp bha bhb bhh bhi bho bhp bi- bia bib bih bii bio bip biz boa bob boh boi boo bop boz bpa bpb bph bpi bpo bpp bza bzh bzo bzp bzz h-i haa hab hah hai hao hap haz hba hbb hbh hbi hbo hbp hbz hha hhb hhh hhi hho hhp hhz hia hib hih hii hio hip hoa hob hoh hoi hoo hop hpa hpb hph hpi hpo hpp hzo hzp ia- iaa iab iah iai iao iap iaz iba ibb ibh ibi ibo ibp ibz iha ihb ihh ihi iho ihp iia iib iih iii iio iip io- ioa iob ioh ioi ioo iop ipa ipb ipi ipo ipp iza izh izi izo izz o-i oaa oab oah oai oao oap ob- oba obb obh obi obo obp oha ohh ohi oho ohp oia oib oii oio oip oiz oo- ooa oob ooh ooi ooo oop op- opa opb oph opi opo opp oza ozo ozz p-p paa pab pah pai pao pap paz pba pbb pbi pbo pbp pbz pha phb phi pho php pia pib pih pii pio pip piz poa pob poh poi poo pop poz ppa ppb pph ppi ppo ppp ppz pzp zaa zab zah zai zao zap zaz zbb zha zhi zho zia zib zio zip ziz zo- zoa zob zoi zoo zpi zpo zpp zzz