-er -ic a-a a-b a-c a-i a-t aaa aab aac aad aae aag aai aao aap aar aas aat ab- aba abb abc abd abe abg abi abo abp abr abs abt ac- aca acb acc acd ace acg aci aco acp acr acs act ad- ada adb adc add ade adg adi ado adp adr ads adt aea aeb aec aed aee aeg aei aeo aep aer aes aet ag- aga agb agc agd age agg agi ago agp agr ags agt ai- aia aib aic aid aie aig aii aio aip air ais ait aoa aob aoc aod aoe aog aoi aoo aop aor aos aot ap- apa apb apc apd ape apg api apo app apr aps apt ar- ara arb arc ard are arg ari aro arp arr ars art as- asa asb asc asd ase asg asi aso asp asr ass ast at- ata atb atc atd ate atg ati ato atp atr ats att b-p baa bab bac bad bae bag bai bao bap bar bas bat bba bbb bbc bbd bbe bbg bbi bbo bbp bbr bbs bbt bca bcb bcc bcd bce bcg bci bco bcp bcr bcs bct bda bdb bdc bdd bde bdg bdi bdo bdp bdr bds bdt be- bea beb bec bed bee beg bei beo bep ber bes bet bga bgb bgc bgd bge bgg bgi bgo bgp bgr bgs bgt bi- bia bib bic bid bie big bii bio bip bir bis bit boa bob boc bod boe bog boi boo bop bor bos bot bpa bpb bpc bpd bpe bpg bpi bpo bpp bpr bps bpt bra brb brd bre brg bri bro brp brr brs brt bsa bsb bsc bsd bse bsg bsi bso bsp bsr bss bst bta btb btc btd bte btg bti bto btp btr bts btt c-- caa cab cac cad cae cag cai cao cap car cas cat cba cbb cbc cbd cbe cbg cbi cbo cbp cbr cbs cbt cca ccb ccc ccd cce ccg cci cco ccp ccr ccs cct cda cdb cdc cdd cde cdg cdi cdo cdp cdr cds cdt ce- cea ceb cec ced cee ceg cei ceo cep cer ces cet cga cgb cgc cgd cge cgg cgi cgo cgp cgr cgs cgt ci- cia cib cic cid cie cig cii cio cip cir cis cit co- coa cob coc cod coe cog coi coo cop cor cos cot cpa cpb cpc cpd cpe cpg cpi cpo cpp cpr cps cpt cra crb crc crd cre crg cri cro crp crr crs crt csa csb csc csd cse csg csi cso csp csr css cst cta ctb ctc ctd cte ctg cti cto ctp ctr cts ctt daa dab dac dad dae dag dai dao dap dar das dat dba dbb dbc dbd dbe dbg dbi dbo dbp dbr dbs dbt dca dcb dcc dcd dce dcg dci dco dcp dcr dcs dct dda ddb ddc ddd dde ddg ddi ddo ddp ddr dds ddt de- dea deb dec ded dee deg dei deo dep der des det dga dgc dgd dge dgg dgi dgp dgr dgs dgt di- dia dib dic did die dig dii dio dip dir dis dit doa dob doc dod doe dog doi doo dop dor dos dot dpa dpb dpc dpd dpe dpg dpi dpo dpp dpr dps dpt dra drb drc drd dre drg dri dro drp drr drs drt dsa dsb dsc dsd dse dsg dsi dso dsp dsr dss dst dta dtb dtc dtd dte dtg dti dto dtp dtr dts dtt eaa eab eac ead eae eag eai eao eap ear eas eat eba ebb ebc ebd ebe ebg ebi ebo ebp ebr ebs ebt ec- eca ecb ecc ecd ece ecg eci eco ecr ecs ect ed- eda edb edc edd ede edg edi edo edp edr eds edt eea eeb eec eed eee eeg eeo eep eer ees eet ega egb egc egd ege egg egi ego egp egr egs egt eia eib eic eid eie eig eii eio eip eir eis eit eo- eoa eob eoc eod eoe eog eoi eoo eop eor eos eot ep- epa epb epc epd epe epg epi epo epp epr eps ept era erb erc erd ere erg eri ero erp err ers ert es- esa esb esc esd ese esg esi eso esp esr ess est eta etb etc etd ete etg eti eto etp etr ets ett g-d g-p gaa gab gac gad gae gag gai gao gap gar gas gat gba gbc gbd gbe gbg gbi gbo gbp gbr gbs gbt gca gcb gcc gcd gce gcg gci gco gcp gcr gcs gct gda gdb gdc gdd gde gdi gdo gdp gdr gds gdt ge- gea geb gec ged gee geg gei geo gep ger ges get gga ggb ggc ggd ggg ggi ggo ggp ggr ggs ggt gia gib gic gid gie gig gii gio gip gir gis git goa gob goc god goe gog goi goo gop gor gos got gpa gpb gpc gpd gpe gpg gpi gpo gpp gpr gps gpt gra grb grc grd gre grg gri gro grp grr grs grt gsa gsb gsc gsd gse gsg gsi gso gsp gsr gss gst gta gtb gtc gtd gte gtg gti gto gtp gtr gts gtt i-d ia- iaa iab iac iad iae iag iai iao iap iar ias iat iba ibb ibc ibd ibe ibg ibi ibo ibp ibr ibs ibt ica icb icc icd ice icg ici ico icp icr ics ict ida idb idc idd ide idg idi ido idp idr ids idt ie- iea iec ied iee ieg iei iep ier ies iet iga igb igc igd ige igg igi igo igp igr igs igt iia iib iic iid iie iii iio iip iir iis iit io- ioa iob ioc iod ioe iog ioi ioo iop ior ios iot ipa ipb ipc ipd ipe ipg ipi ipo ipp ipr ips ipt ir- ira