-er -ic a-a a-b a-c a-i a-t aaa aab aac aad aae aag aai aan aar aat ab- aba abb abc abd abe abg abi abn abr abt ac- aca acb acc acd ace acg aci acn acr act ad- ada adb adc add ade adg adi adn adr adt aea aeb aec aed aee aeg aei aen aer aet ag- aga agb agc agd age agg agi agn agr agt ai- aia aib aic aid aie aig aii ain air ait an- ana anb anc and ane ang ani ann anr ant ar- ara arb arc ard are arg ari arn arr art at- ata atb atc atd ate atg ati atn atr att baa bab bac bad bae bag bai ban bar bat bba bbb bbc bbd bbe bbg bbi bbn bbr bbt bca bcb bcc bcd bce bcg bci bcn bcr bct bda bdb bdc bdd bde bdg bdi bdr bdt be- bea beb bec bed bee beg bei ben ber bet bga bgb bgc bgd bge bgg bgi bgn bgr bgt bi- bia bib bic bid bie big bii bin bir bit bna bnb bnc bnd bne bng bni bnn bnr bnt bra brb brd bre brg bri brn brr brt bta btb btc btd bte btg bti btn btr btt c-- caa cab cac cad cae cag cai can car cat cba cbb cbc cbd cbe cbg cbi cbn cbr cbt cca ccb ccc ccd cce ccg cci ccn ccr cct cda cdb cdc cdd cde cdg cdi cdn cdr cdt ce- cea ceb cec ced cee ceg cei cen cer cet cga cgb cgc cgd cge cgg cgi cgn cgr cgt ci- cia cib cic cid cie cig cii cin cir cit cn- cna cnb cnc cnd cne cng cni cnn cnr cnt cra crb crc crd cre crg cri crn crr crt cta ctb ctc ctd cte ctg cti ctn ctr ctt daa dab dac dad dae dag dai dan dar dat dba dbb dbc dbd dbe dbg dbi dbn dbr dbt dca dcb dcc dcd dce dcg dci dcn dcr dct dda ddb ddc ddd dde ddg ddi ddn ddr ddt de- dea deb dec ded dee deg dei den der det dga dgc dgd dge dgg dgi dgn dgr dgt di- dia dib dic did die dig dii din dir dit dna dnb dnc dnd dne dng dni dnn dnr dnt dra drb drc drd dre drg dri drn drr drt dta dtb dtc dtd dte dtg dti dtn dtr dtt eaa eab eac ead eae eag eai ean ear eat eba ebb ebc ebd ebe ebg ebi ebn ebr ebt ec- eca ecb ecc ecd ece ecg eci ecn ecr ect ed- eda edb edc edd ede edg edi edn edr edt eea eeb eec eed eee eeg een eer eet ega egb egc egd ege egg egi egn egr egt eia eib eic eid eie eig eii ein eir eit en- ena enb enc end ene eng eni enn enr ent era erb erc erd ere erg eri ern err ert eta etb etc etd ete etg eti etn etr ett g-d gaa gab gac gad gae gag gai gan gar gat gba gbc gbd gbe gbg gbi gbn gbr gbt gca gcb gcc gcd gce gcg gci gcn gcr gct gda gdb gdc gdd gde gdi gdn gdr gdt ge- gea geb gec ged gee geg gei gen ger get gga ggb ggc ggd ggg ggi ggn ggr ggt gia gib gic gid gie gig gii gin gir git gna gnb gnc gnd gne gni gnn gnr gnt gra grb grc grd gre grg gri grn grr grt gta gtb gtc gtd gte gtg gti gtn gtr gtt i-d ia- iaa iab iac iad iae iag iai ian iar iat iba ibb ibc ibd ibe ibg ibi ibn ibr ibt ica icb icc icd ice icg ici icn icr ict ida idb idc idd ide idg idi idn idr idt ie- iea iec ied iee ieg iei ien ier iet iga igb igc igd ige igg igi ign igr igt iia iib iic iid iie iii iin iir iit in- ina inb inc ind ine ing ini inn inr int ir- ira irb irc ird ire irg iri irn irr irt ita itb itc itd ite itg iti itn itt n-i naa nab nac nad nae nag nai nan nar nat nba nbb nbc nbd nbe nbg nbi nbn nbr nbt nca ncb ncc ncd nce ncg nci ncn ncr nct nda ndb ndc ndd nde ndg ndi ndn ndr ndt ne- nea neb nec ned nee neg nei nen ner net nga ngb ngc ngd nge ngg ngi ngn ngt nia nib nic nid nie nig nii nin nir nit nna nnb nnc nne nng nni nnn nnt nra nrb nrc nrd nre nrg nri nrn nrr nrt nta ntb ntc ntd nte ntg nti ntn ntr ntt ra- raa rab rac rad rae rag rai ran rar rat rba rbb rbc rbd rbe rbg rbi rbn rbr rbt rca rcb rcc rcd rce rcg rci rcn rcr rct rda rdb rdc rdd rde rdg rdi rdn rdr rdt re- rea reb rec red ree reg rei ren rer ret rga rgb rgc rgd rge rgg rgi rgn rgr rgt ria rib ric rid rie rig rii rin rir rit rna rnb rnc rnd rng rni rnn rnr rnt rra rrb rrc rrd rrg rri rrn rrr rrt rta rtb rtc rtd rte rtg rti rtn rtr rtt taa tab tac tad tae tag tai tan tar tat tba tbb tbc tbd tbe tbg tbi tbn tbr tbt tca tcb tcc tcd tce tcg tci tcn tcr tct tda tdb tdc tdd tde tdg tdi tdn tdr tdt te- tea teb tec ted tee teg tei ten ter tet tga tgb tgc tge tgg tgi tgn tgr tgt tia tib tic tid tie tig tii tin tir tit tna tnb tnc tnd tne tng tni tnn tnr