a-a a-b a-i aaa aab aad aae aah aai aao aap ab- aba abb abd abe abh abi abo abp ad- ada adb add ade adh adi ado adp aea aeb aed aee aeh aei aeo aep aha ahb ahd ahe ahh ahi aho ahp ai- aia aib aid aie aih aii aio aip aoa aob aod aoe aoh aoi aoo aop ap- apa apb apd ape aph api apo app b-p baa bab bad bae bah bai bao bap bba bbb bbd bbe bbh bbi bbo bbp bda bdb bdd bde bdh bdi bdo bdp be- bea beb bed bee beh bei beo bep bha bhb bhd bhe bhh bhi bho bhp bi- bia bib bid bie bih bii bio bip boa bob bod boe boh boi boo bop bpa bpb bpd bpe bph bpi bpo bpp daa dab dad dae dah dai dao dap dba dbb dbd dbe dbh dbi dbo dbp dda ddb ddd dde ddh ddi ddo ddp de- dea deb ded dee deh dei deo dep dh- dha dhb dhd dhe dhh dhi dho dhp di- dia dib did die dih dii dio dip doa dob dod doe doh doi doo dop dpa dpb dpd dpe dph dpi dpo dpp eaa eab ead eae eah eai eao eap eba ebb ebd ebe ebh ebi ebo ebp ed- eda edb edd ede edh edi edo edp eea eeb eed eee eeo eep eha ehb ehd ehe ehh ehi eho ehp eia eib eid eie eii eio eip eo- eoa eob eod eoe eoh eoi eoo eop ep- epa epb epd epe eph epi epo epp h-i haa hab had hae hah hai hao hap hba hbb hbd hbe hbh hbi hbo hbp hda hdb hdd hde hdh hdi hdo hdp he- hea heb hed hee heh hei heo hep hha hhb hhd hhe hhh hhi hho hhp hia hib hid hie hih hii hio hip hoa hob hod hoe hoh hoi hoo hop hpa hpb hpd hpe hph hpi hpo hpp i-d ia- iaa iab iad iae iah iai iao iap iba ibb ibd ibe ibh ibi ibo ibp ida idb idd ide idh idi ido idp ie- iea ied iee iei iep iha ihb ihd ihe ihh ihi iho ihp iia iib iid iie iih iii iio iip io- ioa iob iod ioe ioh ioi ioo iop ipa ipb ipd ipe ipi ipo ipp o-i oaa oab oad oae oah oai oao oap ob- oba obb obd obe obh obi obo obp oda odb odd ode odh odi odo odp oea oeb oed oee oeh oei oeo oep oha ohd ohe ohh ohi oho ohp oia oib oid oie oii oio oip oo- ooa oob ood ooh ooi ooo oop op- opa opb opd ope oph opi opo opp p-p paa pab pad pae pah pai pao pap pba pbb pbd pbe pbi pbo pbp pda pdb pdd pde pdh pdi pdo pdp pea peb ped pee peh pei peo pep pha phb phd phe phi pho php pia pib pid pie pih pii pio pip poa pob pod poe poh poi poo pop ppa ppb ppd ppe pph ppi ppo ppp