-er a-a a-c aaa aac aae aag aah aak aam aar ac- aca acc ace acg ach ack acm acr aea aec aee aeg aeh aek aem aer ag- aga agc age agg agh agk agm agr aha ahc ahe ahg ahh ahk ahm ahr aka akc ake akg akh akk akm akr ama amc ame amg amh amk amm amr ar- ara arc are arg arh ark arm arr c-- caa cac cae cag cah cak cam car cca ccc cce ccg cch cck ccm ccr ce- cea cec cee ceg ceh cek cem cer cga cgc cge cgg cgh cgm cgr ch- cha chc che chg chh chk chm chr cka ckc ckh ckm cma cmc cme cmg cmh cmk cmm cmr cra crc cre crg crh crk crm crr eaa eac eae eag eah eak eam ear ec- eca ecc ece ecg ech eck ecm ecr eea eec eee eeg eek eem eer ega egc ege egg egh egm egr eha ehc ehe ehg ehh ehm ehr eka ekc eke ekg ekh ekr em- ema emc eme emg emh emk emm emr era erc ere erg erh erk erm err gaa gac gae gag gah gak gam gar gca gcc gce gcg gch gck gcm gcr ge- gea gec gee geg geh gek gem ger gga ggc ggg ggh ggm ggr gha ghc ghe ghg ghh ghr gka gkh gkm gma gmc gme gmg gmh gmm gmr gra grc gre grg grh grk grm grr haa hac hae hag hah hak ham har hca hcc hce hcg hch hck hcm hcr he- hea hec hee heg heh hek hem her hga hgc hge hgg hgh hgk hgm hgr hha hhc hhe hhg hhh hhk hhm hhr hka hkg hkh hkk hkm hkr hma hmc hme hmg hmh hmk hmm hmr hr- hra hrc hre hrg hrh hrk hrm hrr ka- kaa kac kae kag kah kak kam kar kca kcc kce kcg kch kck kcm kcr ke- kea kec kee keg keh kek kem ker kga kgc kgh kgm kha khe khh khk khm khr kkc kke kkh kkk kkm kkr kma kmc kme kmg kmh kmk kmm kra krc krg krk krr m-r maa mac mae mag mah mak mam mar mc- mca mcc mce mcg mch mck mcm mcr mea mec mee meg meh mek mem mer mga mgc mge mgh mgk mgm mgr mha mhc mhg mhh mhk mhm mhr mka mkc mke mkg mkh mkk mkm mkr mma mmc mme mmg mmh mmk mmm mmr mra mrc mre mrg mrh mrk mrm mrr ra- raa rac rae rag rah rak ram rar rca rcc rce rcg rch rcm rcr re- rea rec ree reg reh rek rem rer rga rgc rge rgg rgh rgk rgr rh- rha rhc rhe rhg rhh rhm rhr rkc rke rkg rkk rkm rma rmc rme rmg rmh rmm rmr rra rrc rrg rrh rrk rrm rrr