a-a a-b a-i a-z aaa aab aae aah aai aap aaz ab- aba abb abe abh abi abp abz aea aeb aee aeh aei aep aez aha ahb ahe ahh ahi ahp ahz ai- aia aib aie aih aii aip aiz ap- apa apb ape aph api app az- aza azb aze azi azp azz b-p baa bab bae bah bai bap baz bba bbb bbe bbh bbi bbp be- bea beb bee beh bei bep bez bha bhb bhe bhh bhi bhp bi- bia bib bie bih bii bip biz bpa bpb bpe bph bpi bpp bza bze bzh bzp bzz eaa eab eae eah eai eap eaz eba ebb ebe ebh ebi ebp eea eeb eee eep eha ehb ehe ehh ehi ehp eia eib eie eii eip ep- epa epb epe eph epi epp epz eze ezh ezz h-i haa hab hae hah hai hap haz hba hbb hbe hbh hbi hbp hbz he- hea heb hee heh hei hep hez hha hhb hhe hhh hhi hhp hhz hia hib hie hih hii hip hpa hpb hpe hph hpi hpp hze hzp ia- iaa iab iae iah iai iap iaz iba ibb ibe ibh ibi ibp ibz ie- iea iee iei iep iha ihb ihe ihh ihi ihp iia iib iie iih iii iip ipa ipb ipe ipi ipp iza ize izh izi izz p-p paa pab pae pah pai pap paz pba pbb pbe pbi pbp pbz pea peb pee peh pei pep pez pha phb phe phi php pia pib pie pih pii pip piz ppa ppb ppe pph ppi ppp ppz pzp zaa zab zah zai zap zaz zbb zea zeb zee zeh zep zez zha zhe zhi zia zib zie zip ziz zpe zpi zpp zzz