a-a a-b a-i aaa aab aad aai aak aan aap ab- aba abb abd abi abk abn abp ad- ada adb add adi adk adn adp ai- aia aib aid aii aik ain aip aka akb akd aki akk akn akp an- ana anb and ani ank ann anp ap- apa apb apd api apk apn app b-p baa bab bad bai bak ban bap bba bbb bbd bbi bbk bbn bbp bda bdb bdd bdi bdk bdp bi- bia bib bid bii bik bin bip bka bkb bkk bkn bkp bna bnb bnd bni bnk bnn bnp bpa bpb bpd bpi bpn bpp daa dab dad dai dak dan dap dba dbb dbd dbi dbk dbn dbp dda ddb ddd ddi ddk ddn ddp di- dia dib did dii dik din dip dka dkb dki dkk dkp dna dnb dnd dni dnk dnn dnp dpa dpb dpd dpi dpk dpn dpp i-d ia- iaa iab iad iai ian iap iba ibb ibd ibi ibk ibn ibp ida idb idd idi idk idn idp iia iib iid iii iin iip ika ikb iki ikk in- ina inb ind ini ink inn inp ipa ipb ipd ipi ipn ipp ka- kaa kab kad kai kak kan kap kba kbb kbd kbi kbk kbn kbp kda kdb kdk kdp kia kib kid kii kik kin kip kkb kki kkk kkn kkp kn- kna knd kni knk knn knp kpa kpd kpi kpk kpn kpp n-i naa nab nad nai nak nan nap nba nbb nbd nbi nbk nbn nbp nda ndb ndd ndi ndk ndn ndp nia nib nid nii nik nin nip nka nki nkk nkn nkp nna nnb nni nnk nnn nnp npa npb npd npi npn npp p-p paa pab pad pai pak pan pap pba pbb pbd pbi pbk pbn pbp pda pdb pdd pdi pdk pdn pdp pia pib pid pii pik pin pip pka pkb pkd pki pkn pkp pn- pna pnb pnd pni pnk pnn pnp ppa ppb ppd ppi ppk ppn ppp