a-a a-b a-i a-t aaa aab aad aai aan aap aas aat ab- aba abb abd abi abn abp abs abt ad- ada adb add adi adn adp ads adt ai- aia aib aid aii ain aip ais ait an- ana anb and ani ann anp ans ant ap- apa apb apd api apn app aps apt as- asa asb asd asi asn asp ass ast at- ata atb atd ati atn atp ats att b-p baa bab bad bai ban bap bas bat bba bbb bbd bbi bbn bbp bbs bbt bda bdb bdd bdi bdp bds bdt bi- bia bib bid bii bin bip bis bit bna bnb bnd bni bnn bnp bns bnt bpa bpb bpd bpi bpn bpp bps bpt bsa bsb bsd bsi bsn bsp bss bst bta btb btd bti btn btp bts btt daa dab dad dai dan dap das dat dba dbb dbd dbi dbn dbp dbs dbt dda ddb ddd ddi ddn ddp dds ddt di- dia dib did dii din dip dis dit dna dnb dnd dni dnn dnp dns dnt dpa dpb dpd dpi dpn dpp dps dpt dsa dsb dsd dsi dsn dsp dss dst dta dtb dtd dti dtn dtp dts dtt i-d ia- iaa iab iad iai ian iap ias iat iba ibb ibd ibi ibn ibp ibs ibt ida idb idd idi idn idp ids idt iia iib iid iii iin iip iis iit in- ina inb ind ini inn inp ins int ipa ipb ipd ipi ipn ipp ips ipt is- isa isb isd isi isn isp iss ist ita itb itd iti itn itp its itt n-i naa nab nad nai nan nap nas nat nba nbb nbd nbi nbn nbp nbs nbt nda ndb ndd ndi ndn ndp nds ndt nia nib nid nii nin nip nis nit nna nnb nni nnn nnp nns nnt npa npb npd npi npn npp nps npt nsa nsb nsd nsi nsn nsp nss nst nta ntb ntd nti ntn ntp nts ntt p-p paa pab pad pai pan pap pas pat pba pbb pbd pbi pbn pbp pbs pbt pda pdb pdd pdi pdn pdp pds pdt pia pib pid pii pin pip pis pit pn- pna pnb pnd pni pnn pnp pns pnt ppa ppb ppd ppi ppn ppp pps ppt ps- psa psb psd psi psn psp pss pst pt- pta ptb ptd pti ptn ptp pts ptt saa sab sad sai san sap sas sat sba sbb sbd sbi sbn sbp sbs sbt sda sdb sdd sdi sdn sdp sds sdt sia sib sid sii sin sip sis sit sna snb snd sni snn snp sns snt spa spb spd spi spn spp sps spt ss- ssa ssb ssd ssi ssn ssp sss sst sta stb std sti stn stp sts stt taa tab tad tai tan tap tas tat tba tbb tbd tbi tbn tbp tbs tbt tda tdb tdd tdi tdn tdp tds tdt tia tib tid tii tin tip tis tit tna tnb tnd tni tnn tnp tns tnt tpa tpb tpd tpi tpn tpp tps tpt tsa tsb tsd tsi tsn tsp tss tst tta ttb ttd tti ttn ttp tts ttt