-er a-a a-b a-c a-t aaa aab aac aae aag aaj aam aao aar aat ab- aba abb abc abe abg abj abm abo abr abt ac- aca acb acc ace acg acj acm aco acr act aea aeb aec aee aeg aej aem aeo aer aet ag- aga agb agc age agg agj agm ago agr agt aja ajb ajc aje ajj ajm ajo ajr ajt ama amb amc ame amg amm amo amr amt aoa aob aoc aoe aog aoj aom aoo aor aot ar- ara arb arc are arg arj arm aro arr art at- ata atb atc ate atg atm ato atr att baa bab bac bae bag baj bam bao bar bat bba bbb bbc bbe bbg bbm bbo bbr bbt bca bcb bcc bce bcg bcj bcm bco bcr bct be- bea beb bec bee beg bem beo ber bet bga bgb bgc bge bgg bgm bgo bgr bgt bja bjc bjg bjj bjm bjr bjt bma bmb bmc bme bmg bmj bmm bmo bmr bmt boa bob boc boe bog boj bom boo bor bot bra brb bre brg brj brm bro brr brt bta btb btc bte btg btm bto btr btt c-- c-j caa cab cac cae cag caj cam cao car cat cba cbb cbc cbe cbg cbj cbm cbo cbr cbt cca ccb ccc cce ccg ccj ccm cco ccr cct ce- cea ceb cec cee ceg cej cem ceo cer cet cga cgb cgc cge cgg cgm cgo cgr cgt cja cjb cjc cjg cjr cma cmb cmc cme cmg cmj cmm cmo cmr cmt co- coa cob coc coe cog coj com coo cor cot cra crb crc cre crg crj crm cro crr crt cta ctb ctc cte ctg ctm cto ctr ctt eaa eab eac eae eag eaj eam eao ear eat eba ebb ebc ebe ebg ebj ebm ebo ebr ebt ec- eca ecb ecc ece ecg ecj ecm eco ecr ect eea eeb eec eee eeg eem eeo eer eet ega egb egc ege egg egm ego egr egt eja ejc ejo ejt em- ema emb emc eme emg emm emo emr emt eo- eoa eob eoc eoe eog eom eoo eor eot era erb erc ere erg erm ero err ert eta etb etc ete etg etj etm eto etr ett gaa gab gac gae gag gaj gam gao gar gat gba gbc gbe gbg gbj gbm gbo gbr gbt gca gcb gcc gce gcg gcm gco gcr gct ge- gea geb gec gee geg gem geo ger get gga ggb ggc ggg ggj ggm ggo ggr ggt gja gjc gje gjg gjr gjt gma gmb gmc gme gmg gmj gmm gmo gmr gmt goa gob goc goe gog gom goo gor got gra grb grc gre grg grj grm gro grr grt gta gtb gtc gte gtg gtm gto gtr gtt jaa jab jac jae jag jaj jam jao jar jat jba jbc jbg jbj jbm jbo jbr jbt jca jcb jcc jce jcm jco jcr jct jea jeb jec jee jeg jej jem jeo jer jet jga jgb jge jgo jgr jgt jja jjb jjc jjg jjj jjr jma jmb jmc jme jmj jmm jmo jmr jmt joa job joc joe jog joj jom joo jor jot jra jrb jrc jrg jrm jro jrr jrt jta jtb jtc jte jtg jtm jtr jtt m-o m-r maa mab mac mae mag maj mam mao mar mat mba mbb mbc mbe mbg mbj mbm mbo mbr mbt mc- mca mcb mcc mce mcg mcm mco mcr mct mea meb mec mee meg mej mem meo mer met mga mgb mgc mge mgj mgm mgo mgr mgt mjb mjc mje mjj mjm mjr mjt mma mmb mmc mme mmg mmj mmm mmo mmr mmt moa mob moc moe mog mom moo mor mot mra mrb mrc mre mrg mrj mrm mro mrr mrt mta mtb mtc mte mtg mtj mtm mto mtr mtt oaa oab oac oae oag oaj oam oao oar oat ob- oba obb obc obe obg obj obm obo obr obt oc- oca ocb occ ocg ocj ocm oco ocr oct oea oeb oec oee oeg oem oeo oer oet oga ogc oge ogg ogo ogt oja ojb ojc oje ojm ojo om- oma omb omc ome omg omj omm omo omr omt oo- ooa oob ooc oog oom ooo oor oot or- ora orb orc ore org orm oro orr ort ot- ota otb otc ote otg otm oto otr ott ra- raa rab rac rae rag raj ram rao rar rat rba rbb rbc rbe rbg rbm rbo rbr rbt rca rcb rcc rce rcg rcj rcm rco rcr rct re- rea reb rec ree reg rem reo rer ret rga rgb rgc rge rgg rgo rgr rgt rja rjc rjg rjm rjr rma rmb rmc rme rmg rmm rmo rmr rmt roa rob roc roe rog roj rom roo ror rot rra rrb rrc rrg rrm rrr rrt rta rtb rtc rte rtg rtj rtm rto rtr rtt taa tab tac tae tag taj tam tao tar tat tba tbb tbc tbe tbg tbj tbm tbo tbr tbt tca tcb tcc tce tcg tcj tcm tco tcr tct te- tea teb tec tee teg tej tem teo ter tet tga tgb tgc tge tgg tgm tgo tgr tgt tjc tje tjm tjo tjr tma tmb tmc tme tmg tmj tmm tmo tmr tmt to- toa tob toc toe tog toj tom too tor tot tra trb trc tre trg trm tro trr trt tta ttb ttc tte ttg ttm tto ttr ttt