-er -ic a-a a-b a-c a-i a-t aaa aab aac aad aae aai aap aar aas aat ab- aba abb abc abd abe abi abp abr abs abt ac- aca acb acc acd ace aci acp acr acs act ad- ada adb adc add ade adi adp adr ads adt aea aeb aec aed aee aei aep aer aes aet ai- aia aib aic aid aie aii aip air ais ait ap- apa apb apc apd ape api app apr aps apt ar- ara arb arc ard are ari arp arr ars art as- asa asb asc asd ase asi asp asr ass ast at- ata atb atc atd ate ati atp atr ats att b-p baa bab bac bad bae bai bap bar bas bat bba bbb bbc bbd bbe bbi bbp bbr bbs bbt bca bcb bcc bcd bce bci bcp bcr bcs bct bda bdb bdc bdd bde bdi bdp bdr bds bdt be- bea beb bec bed bee bei bep ber bes bet bi- bia bib bic bid bie bii bip bir bis bit bpa bpb bpc bpd bpe bpi bpp bpr bps bpt bra brb brd bre bri brp brr brs brt bsa bsb bsc bsd bse bsi bsp bsr bss bst bta btb btc btd bte bti btp btr bts btt c-- caa cab cac cad cae cai cap car cas cat cba cbb cbc cbd cbe cbi cbp cbr cbs cbt cca ccb ccc ccd cce cci ccp ccr ccs cct cda cdb cdc cdd cde cdi cdp cdr cds cdt ce- cea ceb cec ced cee cei cep cer ces cet ci- cia cib cic cid cie cii cip cir cis cit cpa cpb cpc cpd cpe cpi cpp cpr cps cpt cra crb crc crd cre cri crp crr crs crt csa csb csc csd cse csi csp csr css cst cta ctb ctc ctd cte cti ctp ctr cts ctt daa dab dac dad dae dai dap dar das dat dba dbb dbc dbd dbe dbi dbp dbr dbs dbt dca dcb dcc dcd dce dci dcp dcr dcs dct dda ddb ddc ddd dde ddi ddp ddr dds ddt de- dea deb dec ded dee dei dep der des det di- dia dib dic did die dii dip dir dis dit dpa dpb dpc dpd dpe dpi dpp dpr dps dpt dra drb drc drd dre dri drp drr drs drt dsa dsb dsc dsd dse dsi dsp dsr dss dst dta dtb dtc dtd dte dti dtp dtr dts dtt eaa eab eac ead eae eai eap ear eas eat eba ebb ebc ebd ebe ebi ebp ebr ebs ebt ec- eca ecb ecc ecd ece eci ecr ecs ect ed- eda edb edc edd ede edi edp edr eds edt eea eeb eec eed eee eep eer ees eet eia eib eic eid eie eii eip eir eis eit ep- epa epb epc epd epe epi epp epr eps ept era erb erc erd ere eri erp err ers ert es- esa esb esc esd ese esi esp esr ess est eta etb etc etd ete eti etp etr ets ett i-d ia- iaa iab iac iad iae iai iap iar ias iat iba ibb ibc ibd ibe ibi ibp ibr ibs ibt ica icb icc icd ice ici icp icr ics ict ida idb idc idd ide idi idp idr ids idt ie- iea iec ied iee iei iep ier ies iet iia iib iic iid iie iii iip iir iis iit ipa ipb ipc ipd ipe ipi ipp ipr ips ipt ir- ira irb irc ird ire iri irp irr irs irt is- isa isb isc isd ise isi isp isr iss ist ita itb itc itd ite iti itp its itt p-p paa pab pac pad pae pai pap par pas pat pba pbb pbc pbd pbe pbi pbp pbr pbs pbt pca pcb pcc pcd pce pci pcp pcr pcs pct pda pdb pdc pdd pde pdi pdp pdr pds pdt pea peb pec ped pee pei pep per pes pet pia pib pic pid pie pii pip pir pis pit ppa ppb ppc ppd ppe ppi ppp ppr pps ppt pra prb prc prd pre pri prp prr prs prt ps- psa psb psc psd pse psi psp psr pss pst pt- pta ptb ptc ptd pte pti ptp ptr pts ptt ra- raa rab rac rad rae rai rap rar ras rat rba rbb rbc rbd rbe rbi rbp rbr rbs rbt rca rcb rcc rcd rce rci rcp rcr rcs rct rda rdb rdc rdd rde rdi rdp rdr rds rdt re- rea reb rec red ree rei rep rer res ret ria rib ric rid rie rii rip rir ris rit rpa rpb rpc rpd rpe rpi rpp rpr rps rpt rra rrb rrc rrd rri rrp rrr rrs rrt rsa rsb rsc rsd rse rsi rsp rsr rss rst rta rtb rtc rtd rte rti rtp rtr rts rtt saa sab sac sad sae sai sap sar sas sat sba sbb sbc sbd sbe sbi sbp sbr sbs sbt sca scb scc scd sce sci scp scr scs sct sda sdb sdc sdd sde sdi sdp sdr sds sdt se- sea seb sec sed see sei sep ser ses set sia sib sic sid sie sii sip sir sis sit spa spb spc spd spe spi spp spr sps spt sr- sra srb src srd sre sri srp srr srs srt ss- ssa ssb ssc ssd sse ssi ssp ssr sss sst sta stb stc std ste sti stp str sts stt taa tab tac tad tae tai tap tar tas tat tba tbb tbc tbd tbe tbi tbp tbr tbs tbt tca tcb tcc tcd tce tci tcp tcr tcs tct tda tdb tdc tdd tde tdi tdp tdr tds tdt te- tea teb tec ted tee tei tep ter tes tet tia tib tic tid tie tii tip tir tis tit tpa tpb tpc tpd tpe