-er -th a-a a-b a-t aaa aab aae aaf aag aah aak aao aar aat ab- aba abb abe abf abg abh abk abo abr abt aea aeb aee aef aeg aeh aek aeo aer aet af- afa afb afe aff afg afh afk afo afr aft ag- aga agb age agf agg agh agk ago agr agt aha ahb ahe ahf ahg ahh ahk aho ahr aht aka akb ake akg akh akk ako akr aoa aob aoe aof aog aoh aok aoo aor aot ar- ara arb are arf arg arh ark aro arr art at- ata atb ate atf atg ath ato atr att baa bab bae baf bag bah bak bao bar bat bba bbb bbe bbf bbg bbh bbk bbo bbr bbt be- bea beb bee bef beg beh bek beo ber bet bfa bfb bfe bff bfg bfh bfo bfr bft bga bgb bge bgf bgg bgh bgk bgo bgr bgt bha bhb bhe bhf bhg bhh bhk bho bhr bht bka bkb bke bkf bkg bkk bko bkr bkt boa bob boe bof bog boh bok boo bor bot bra brb bre brf brg brh brk bro brr brt bta btb bte btf btg bth btk bto btr btt eaa eab eae eaf eag eah eak eao ear eat eba ebb ebe ebf ebg ebh ebk ebo ebr ebt eea eeb eee eef eeg eek eeo eer eet ef- efa efb efe eff efg efh efo efr eft ega egb ege egf egg egh ego egr egt eha ehb ehe ehf ehg ehh eho ehr eht eka ekb eke ekf ekg ekh eko ekr ekt eo- eoa eob eoe eof eog eoh eok eoo eor eot era erb ere erf erg erh erk ero err ert eta etb ete etf etg eth etk eto etr ett faa fab fae faf fag fah fak fao far fat fba fbb fbe fbf fbg fbh fbk fbo fbr fbt fea feb fee fef feg feh fek feo fer fet ffa ffe fff ffg ffh ffk ffo ffr fft fga fgb fge fgf fgg fgh fgr fgt fha fhb fhe fhf fhg fhh fho fhr fka fkb fkf fkg fkk fkt foa fob foe fof fog foh fok foo for fot fra frb fre frf frg frh frk fro frr frt fta ftb fte ftf ftg fth ftk fto ftr ftt gaa gab gae gaf gag gah gak gao gar gat gba gbe gbf gbg gbh gbk gbo gbr gbt ge- gea geb gee gef geg geh gek geo ger get gfa gfb gfe gff gfh gfk gfo gfr gft gga ggb ggg ggh ggo ggr ggt gha ghb ghe ghg ghh gho ghr ght gka gkb gkh gko gkt goa gob goe gof gog goh gok goo gor got gra grb gre grf grg grh grk gro grr grt gta gtb gte gtf gtg gth gtk gto gtr gtt haa hab hae haf hag hah hak hao har hat hba hbb hbe hbf hbg hbh hbk hbo hbr hbt he- hea heb hee hef heg heh hek heo her het hfa hfb hfe hff hfg hfh hfk hfo hfr hft hga hgb hge hgf hgg hgh hgk hgo hgr hgt hha hhb hhe hhf hhg hhh hhk hho hhr hht hka hkb hkf hkg hkh hkk hko hkr hkt hoa hob hoe hof hog hoh hok hoo hor hot hr- hra hrb hre hrf hrg hrh hrk hro hrr hrt hta htb hte htf htg hth htk hto htr htt k-t ka- kaa kab kae kaf kag kah kak kao kar kat kba kbb kbe kbf kbh kbk kbo kbr ke- kea keb kee kef keg keh kek keo ker ket kfa kff kfg kfh kfo kga kgb kgf kgh kgo kha khe khf khh khk kho khr kkb kke kkh kkk kkr kkt koa kob koe kof kog koh kok koo kor kot kra krf krg krk kro krr krt kta ktb kte ktf ktg kth ktk kto ktr ktt oaa oab oae oaf oag oah oak oao oar oat ob- oba obb obe obf obg obh obk obo obr obt oea oeb oee oef oeg oeh oeo oer oet of- ofa ofb ofe off ofg ofo ofr oft oga oge ogf ogg ogh ogo ogt oha ohe ohf ohg ohh oho ohr oht oka okb oke okg okk oko okr oo- ooa oob oof oog ooh ook ooo oor oot or- ora orb ore orf org orh ork oro orr ort ot- ota otb ote otf otg oth otk oto otr ott ra- raa rab rae raf rag rah rak rao rar rat rba rbb rbe rbf rbg rbh rbk rbo rbr rbt re- rea reb ree ref reg reh rek reo rer ret rfa rfb rfe rff rfg rfh rfk rfo rfr rft rga rgb rge rgf rgg rgh rgk rgo rgr rgt rh- rha rhb rhe rhf rhg rhh rho rhr rht rkb rke rkf rkg rkk rko rkt roa rob roe rof rog roh rok roo ror rot rra rrb rrf rrg rrh rrk rrr rrt rta rtb rte rtf rtg rtk rto rtr rtt taa tab tae taf tag tah tak tao tar tat tba tbb tbe tbf tbg tbh tbk tbo tbr tbt te- tea teb tee tef teg teh tek teo ter tet tfa tfb tfe tff tfg tfh tfk tfo tfr tft tga tgb tge tgf tgg tgh tgk tgo tgr tgt th- tha thb the thf thg thh thk tho thr tht tka tkb tke tkg tkk tko tkr tkt to- toa tob toe tof tog toh tok too tor tot tra trb tre trf trg trh trk tro trr trt tta ttb tte ttf ttg tth ttk tto ttr ttt