-ic a-a a-b a-c a-i a-t aaa aab aac aad aae aai aao aap aas aat ab- aba abb abc abd abe abi abo abp abs abt ac- aca acb acc acd ace aci aco acp acs act ad- ada adb adc add ade adi ado adp ads adt aea aeb aec aed aee aei aeo aep aes aet ai- aia aib aic aid aie aii aio aip ais ait aoa aob aoc aod aoe aoi aoo aop aos aot ap- apa apb apc apd ape api apo app aps apt as- asa asb asc asd ase asi aso asp ass ast at- ata atb atc atd ate ati ato atp ats att b-p baa bab bac bad bae bai bao bap bas bat bba bbb bbc bbd bbe bbi bbo bbp bbs bbt bca bcb bcc bcd bce bci bco bcp bcs bct bda bdb bdc bdd bde bdi bdo bdp bds bdt be- bea beb bec bed bee bei beo bep bes bet bi- bia bib bic bid bie bii bio bip bis bit boa bob boc bod boe boi boo bop bos bot bpa bpb bpc bpd bpe bpi bpo bpp bps bpt bsa bsb bsc bsd bse bsi bso bsp bss bst bta btb btc btd bte bti bto btp bts btt c-- caa cab cac cad cae cai cao cap cas cat cba cbb cbc cbd cbe cbi cbo cbp cbs cbt cca ccb ccc ccd cce cci cco ccp ccs cct cda cdb cdc cdd cde cdi cdo cdp cds cdt ce- cea ceb cec ced cee cei ceo cep ces cet ci- cia cib cic cid cie cii cio cip cis cit co- coa cob coc cod coe coi coo cop cos cot cpa cpb cpc cpd cpe cpi cpo cpp cps cpt csa csb csc csd cse csi cso csp css cst cta ctb ctc ctd cte cti cto ctp cts ctt daa dab dac dad dae dai dao dap das dat dba dbb dbc dbd dbe dbi dbo dbp dbs dbt dca dcb dcc dcd dce dci dco dcp dcs dct dda ddb ddc ddd dde ddi ddo ddp dds ddt de- dea deb dec ded dee dei deo dep des det di- dia dib dic did die dii dio dip dis dit doa dob doc dod doe doi doo dop dos dot dpa dpb dpc dpd dpe dpi dpo dpp dps dpt dsa dsb dsc dsd dse dsi dso dsp dss dst dta dtb dtc dtd dte dti dto dtp dts dtt eaa eab eac ead eae eai eao eap eas eat eba ebb ebc ebd ebe ebi ebo ebp ebs ebt ec- eca ecb ecc ecd ece eci eco ecs ect ed- eda edb edc edd ede edi edo edp eds edt eea eeb eec eed eee eeo eep ees eet eia eib eic eid eie eii eio eip eis eit eo- eoa eob eoc eod eoe eoi eoo eop eos eot ep- epa epb epc epd epe epi epo epp eps ept es- esa esb esc esd ese esi eso esp ess est eta etb etc etd ete eti eto etp ets ett i-d ia- iaa iab iac iad iae iai iao iap ias iat iba ibb ibc ibd ibe ibi ibo ibp ibs ibt ica icb icc icd ice ici ico icp ics ict ida idb idc idd ide idi ido idp ids idt ie- iea iec ied iee iei iep ies iet iia iib iic iid iie iii iio iip iis iit io- ioa iob ioc iod ioe ioi ioo iop ios iot ipa ipb ipc ipd ipe ipi ipo ipp ips ipt is- isa isb isc isd ise isi iso isp iss ist ita itb itc itd ite iti ito itp its itt o-i oaa oab oac oad oae oai oao oap oas oat ob- oba obb obc obd obe obi obo obp obs obt oc- oca ocb occ ocd oci oco ocp ocs oct oda odb odc odd ode odi odo odp ods odt oea oeb oec oed oee oei oeo oep oes oet oia oib oic oid oie oii oio oip ois oit oo- ooa oob ooc ood ooi ooo oop oos oot op- opa opb opc opd ope opi opo opp ops opt os- osa osb osc osd ose osi oso osp oss ost ot- ota otb otc otd ote oti oto otp ots ott p-p paa pab pac pad pae pai pao pap pas pat pba pbb pbc pbd pbe pbi pbo pbp pbs pbt pca pcb pcc pcd pce pci pco pcp pcs pct pda pdb pdc pdd pde pdi pdo pdp pds pdt pea peb pec ped pee pei peo pep pes pet pia pib pic pid pie pii pio pip pis pit poa pob poc pod poe poi poo pop pos pot ppa ppb ppc ppd ppe ppi ppo ppp pps ppt ps- psa psb psc psd pse psi pso psp pss pst pt- pta ptb ptc ptd pte pti pto ptp pts ptt saa sab sac sad sae sai sao sap sas sat sba sbb sbc sbd sbe sbi sbo sbp sbs sbt sca scb scc scd sce sci sco scp scs sct sda sdb sdc sdd sde sdi sdo sdp sds sdt se- sea seb sec sed see sei seo sep ses set sia sib sic sid sie sii sio sip sis sit soa sob soc sod soe soi soo sop sos sot spa spb spc spd spe spi spo spp sps spt ss- ssa ssb ssc ssd sse ssi sso ssp sss sst sta stb stc std ste sti sto stp sts stt taa tab tac tad tae tai tao tap tas tat tba tbb tbc tbd tbe tbi tbo tbp tbs tbt tca tcb tcc tcd tce tci tco tcp tcs tct tda tdb tdc tdd tde tdi tdo tdp tds tdt te- tea teb tec ted tee tei teo tep tes tet tia tib tic tid tie tii tio tip tis tit to-