a-a a-b a-i a-t aaa aab aad aae aai aao aap aas aat ab- aba abb abd abe abi abo abp abs abt ad- ada adb add ade adi ado adp ads adt aea aeb aed aee aei aeo aep aes aet ai- aia aib aid aie aii aio aip ais ait aoa aob aod aoe aoi aoo aop aos aot ap- apa apb apd ape api apo app aps apt as- asa asb asd ase asi aso asp ass ast at- ata atb atd ate ati ato atp ats att b-p baa bab bad bae bai bao bap bas bat bba bbb bbd bbe bbi bbo bbp bbs bbt bda bdb bdd bde bdi bdo bdp bds bdt be- bea beb bed bee bei beo bep bes bet bi- bia bib bid bie bii bio bip bis bit boa bob bod boe boi boo bop bos bot bpa bpb bpd bpe bpi bpo bpp bps bpt bsa bsb bsd bse bsi bso bsp bss bst bta btb btd bte bti bto btp bts btt daa dab dad dae dai dao dap das dat dba dbb dbd dbe dbi dbo dbp dbs dbt dda ddb ddd dde ddi ddo ddp dds ddt de- dea deb ded dee dei deo dep des det di- dia dib did die dii dio dip dis dit doa dob dod doe doi doo dop dos dot dpa dpb dpd dpe dpi dpo dpp dps dpt dsa dsb dsd dse dsi dso dsp dss dst dta dtb dtd dte dti dto dtp dts dtt eaa eab ead eae eai eao eap eas eat eba ebb ebd ebe ebi ebo ebp ebs ebt ed- eda edb edd ede edi edo edp eds edt eea eeb eed eee eeo eep ees eet eia eib eid eie eii eio eip eis eit eo- eoa eob eod eoe eoi eoo eop eos eot ep- epa epb epd epe epi epo epp eps ept es- esa esb esd ese esi eso esp ess est eta etb etd ete eti eto etp ets ett i-d ia- iaa iab iad iae iai iao iap ias iat iba ibb ibd ibe ibi ibo ibp ibs ibt ida idb idd ide idi ido idp ids idt ie- iea ied iee iei iep ies iet iia iib iid iie iii iio iip iis iit io- ioa iob iod ioe ioi ioo iop ios iot ipa ipb ipd ipe ipi ipo ipp ips ipt is- isa isb isd ise isi iso isp iss ist ita itb itd ite iti ito itp its itt o-i oaa oab oad oae oai oao oap oas oat ob- oba obb obd obe obi obo obp obs obt oda odb odd ode odi odo odp ods odt oea oeb oed oee oei oeo oep oes oet oia oib oid oie oii oio oip ois oit oo- ooa oob ood ooi ooo oop oos oot op- opa opb opd ope opi opo opp ops opt os- osa osb osd ose osi oso osp oss ost ot- ota otb otd ote oti oto otp ots ott p-p paa pab pad pae pai pao pap pas pat pba pbb pbd pbe pbi pbo pbp pbs pbt pda pdb pdd pde pdi pdo pdp pds pdt pea peb ped pee pei peo pep pes pet pia pib pid pie pii pio pip pis pit poa pob pod poe poi poo pop pos pot ppa ppb ppd ppe ppi ppo ppp pps ppt ps- psa psb psd pse psi pso psp pss pst pt- pta ptb ptd pte pti pto ptp pts ptt saa sab sad sae sai sao sap sas sat sba sbb sbd sbe sbi sbo sbp sbs sbt sda sdb sdd sde sdi sdo sdp sds sdt se- sea seb sed see sei seo sep ses set sia sib sid sie sii sio sip sis sit soa sob sod soe soi soo sop sos sot spa spb spd spe spi spo spp sps spt ss- ssa ssb ssd sse ssi sso ssp sss sst sta stb std ste sti sto stp sts stt taa tab tad tae tai tao tap tas tat tba tbb tbd tbe tbi tbo tbp tbs tbt tda tdb tdd tde tdi tdo tdp tds tdt te- tea teb ted tee tei teo tep tes tet tia tib tid tie tii tio tip tis tit to- toa tob tod toe toi too top tos tot tpa tpb tpd tpe tpi tpo tpp tps tpt tsa tsb tsd tse tsi tso tsp tss tst tta ttb ttd tte tti tto ttp tts ttt