-er a-a a-c aaa aac aae aag aah aam aao aar ac- aca acc ace acg ach acm aco acr aea aec aee aeg aeh aem aeo aer ag- aga agc age agg agh agm ago agr aha ahc ahe ahg ahh ahm aho ahr ama amc ame amg amh amm amo amr aoa aoc aoe aog aoh aom aoo aor ar- ara arc are arg arh arm aro arr c-- caa cac cae cag cah cam cao car cca ccc cce ccg cch ccm cco ccr ce- cea cec cee ceg ceh cem ceo cer cga cgc cge cgg cgh cgm cgo cgr ch- cha chc che chg chh chm cho chr cma cmc cme cmg cmh cmm cmo cmr co- coa coc coe cog coh com coo cor cra crc cre crg crh crm cro crr eaa eac eae eag eah eam eao ear ec- eca ecc ece ecg ech ecm eco ecr eea eec eee eeg eem eeo eer ega egc ege egg egh egm ego egr eha ehc ehe ehg ehh ehm eho ehr em- ema emc eme emg emh emm emo emr eo- eoa eoc eoe eog eoh eom eoo eor era erc ere erg erh erm ero err gaa gac gae gag gah gam gao gar gca gcc gce gcg gch gcm gco gcr ge- gea gec gee geg geh gem geo ger gga ggc ggg ggh ggm ggo ggr gha ghc ghe ghg ghh gho ghr gma gmc gme gmg gmh gmm gmo gmr goa goc goe gog goh gom goo gor gra grc gre grg grh grm gro grr haa hac hae hag hah ham hao har hca hcc hce hcg hch hcm hco hcr he- hea hec hee heg heh hem heo her hga hgc hge hgg hgh hgm hgo hgr hha hhc hhe hhg hhh hhm hho hhr hma hmc hme hmg hmh hmm hmo hmr hoa hoc hoe hog hoh hom hoo hor hr- hra hrc hre hrg hrh hrm hro hrr m-o m-r maa mac mae mag mah mam mao mar mc- mca mcc mce mcg mch mcm mco mcr mea mec mee meg meh mem meo mer mga mgc mge mgh mgm mgo mgr mha mhc mhg mhh mhm mho mhr mma mmc mme mmg mmh mmm mmo mmr moa moc moe mog moh mom moo mor mra mrc mre mrg mrh mrm mro mrr oaa oac oae oag oah oam oao oar oc- oca occ ocg och ocm oco ocr oea oec oee oeg oeh oem oeo oer oga ogc oge ogg ogh ogo oha ohc ohe ohg ohh ohm oho ohr om- oma omc ome omg omh omm omo omr oo- ooa ooc oog ooh oom ooo oor or- ora orc ore org orh orm oro orr ra- raa rac rae rag rah ram rao rar rca rcc rce rcg rch rcm rco rcr re- rea rec ree reg reh rem reo rer rga rgc rge rgg rgh rgo rgr rh- rha rhc rhe rhg rhh rhm rho rhr rma rmc rme rmg rmh rmm rmo rmr roa roc roe rog roh rom roo ror rra rrc rrg rrh rrm rrr