-er a-a a-b a-t aaa aab aae aaf aag aam aao aar aat ab- aba abb abe abf abg abm abo abr abt aea aeb aee aef aeg aem aeo aer aet af- afa afb afe aff afg afm afo afr aft ag- aga agb age agf agg agm ago agr agt ama amb ame amf amg amm amo amr amt aoa aob aoe aof aog aom aoo aor aot ar- ara arb are arf arg arm aro arr art at- ata atb ate atf atg atm ato atr att baa bab bae baf bag bam bao bar bat bba bbb bbe bbf bbg bbm bbo bbr bbt be- bea beb bee bef beg bem beo ber bet bfa bfb bfe bff bfg bfm bfo bfr bft bga bgb bge bgf bgg bgm bgo bgr bgt bma bmb bme bmf bmg bmm bmo bmr bmt boa bob boe bof bog bom boo bor bot bra brb bre brf brg brm bro brr brt bta btb bte btf btg btm bto btr btt eaa eab eae eaf eag eam eao ear eat eba ebb ebe ebf ebg ebm ebo ebr ebt eea eeb eee eef eeg eem eeo eer eet ef- efa efb efe eff efg efm efo efr eft ega egb ege egf egg egm ego egr egt em- ema emb eme emf emg emm emo emr emt eo- eoa eob eoe eof eog eom eoo eor eot era erb ere erf erg erm ero err ert eta etb ete etf etg etm eto etr ett faa fab fae faf fag fam fao far fat fba fbb fbe fbf fbg fbm fbo fbr fbt fea feb fee fef feg fem feo fer fet ffa ffe fff ffg ffm ffo ffr fft fga fgb fge fgf fgg fgm fgr fgt fma fmb fme fmf fmg fmm fmo fmr fmt foa fob foe fof fog fom foo for fot fra frb fre frf frg frm fro frr frt fta ftb fte ftf ftg ftm fto ftr ftt gaa gab gae gaf gag gam gao gar gat gba gbe gbf gbg gbm gbo gbr gbt ge- gea geb gee gef geg gem geo ger get gfa gfb gfe gff gfm gfo gfr gft gga ggb ggg ggm ggo ggr ggt gma gmb gme gmf gmg gmm gmo gmr gmt goa gob goe gof gog gom goo gor got gra grb gre grf grg grm gro grr grt gta gtb gte gtf gtg gtm gto gtr gtt m-f m-o m-r maa mab mae maf mag mam mao mar mat mba mbb mbe mbf mbg mbm mbo mbr mbt mea meb mee mef meg mem meo mer met mfa mfb mfe mff mfg mfm mfo mfr mft mga mgb mge mgf mgm mgo mgr mgt mma mmb mme mmf mmg mmm mmo mmr mmt moa mob moe mof mog mom moo mor mot mra mrb mre mrf mrg mrm mro mrr mrt mta mtb mte mtf mtg mtm mto mtr mtt oaa oab oae oaf oag oam oao oar oat ob- oba obb obe obf obg obm obo obr obt oea oeb oee oef oeg oem oeo oer oet of- ofa ofb ofe off ofg ofm ofo ofr oft oga oge ogf ogg ogo ogt om- oma omb ome omf omg omm omo omr omt oo- ooa oob oof oog oom ooo oor oot or- ora orb ore orf org orm oro orr ort ot- ota otb ote otf otg otm oto otr ott ra- raa rab rae raf rag ram rao rar rat rba rbb rbe rbf rbg rbm rbo rbr rbt re- rea reb ree ref reg rem reo rer ret rfa rfb rfe rff rfg rfm rfo rfr rft rga rgb rge rgf rgg rgo rgr rgt rma rmb rme rmf rmg rmm rmo rmr rmt roa rob roe rof rog rom roo ror rot rra rrb rrf rrg rrm rrr rrt rta rtb rte rtf rtg rtm rto rtr rtt taa tab tae taf tag tam tao tar tat tba tbb tbe tbf tbg tbm tbo tbr tbt te- tea teb tee tef teg tem teo ter tet tfa tfb tfe tff tfg tfm tfo tfr tft tga tgb tge tgf tgg tgm tgo tgr tgt tma tmb tme tmf tmg tmm tmo tmr tmt to- toa tob toe tof tog tom too tor tot tra trb tre trf trg trm tro trr trt tta ttb tte ttf ttg ttm tto ttr ttt

a-be aaaa aaab aaae aaaf aaam aaar aaba aabb aabm aabt aaea aaem aafa aafb aaff aage aama aamb aame aamo aamr aaoe aaoo aara aare aarm aaro aart aata aatf aatt abaa abab abae abaf abag abam abar abat abb- abba abbb abbe abbo abbr abbt abee aber abet abff abma abmb abmt aboa abob abof aboo abor abot abra abro abta aeaf aeer aega aemt aeom aer- aera aero aeta aetf aeto aetr aett afaa afam afao afar afat afee afer afet affa affo afft afgf afma afoa afoe afog afoo afor afr- afra afre afrm afro afta afte ag-o agag agam agao agar agat agba agbo agea agee agem ager aget agfa agga agge agma agme agob agog agoo agot agra agre agro agta agte agtr amaa amae amag amam amar amat amb- amba ambe ambo ambr amee amer amet amfm amfr amga amm- amma amme ammo amob amof amog amoo amor amot amra amro amta amte amto aoba aogm aoma aomg aora aorb aort aotf arab arae araf arag aram arar arat arba arbe area aree aref areg arem areo aret arfa arfb arff arft arga argb arge argo arma arme armm armo armt aroa arob aroe arom aroo aror arr- arra arre arrg arro arrr arrt arta arte arto artr at-t ataa atab atae atar atat atea atee atef atem ateo ater atfb atfe atgm atgo atm- atma atme atmo atob atoe atof atom ator atot atra atre atrm atro atta atte atto attr baaa baaf baam baar baat baba babb babe babm