-er a-a a-c aaa aac aae aag aah aan aar aau ac- aca acc ace acg ach acn acr acu aea aec aee aeg aeh aen aer aeu ag- aga agc age agg agh agn agr agu aha ahc ahe ahg ahh ahn ahr ahu an- ana anc ane ang anh ann anr anu ar- ara arc are arg arh arn arr aru au- aua auc aue aug auh aun aur c-- caa cac cae cag cah can car cau cca ccc cce ccg cch ccn ccr ccu ce- cea cec cee ceg ceh cen cer ceu cga cgc cge cgg cgh cgn cgr cgu ch- cha chc che chg chh chn chr chu cn- cna cnc cne cng cnh cnn cnr cnu cra crc cre crg crh crn crr cru cua cuc cue cug cuh cun cur cuu eaa eac eae eag eah ean ear eau ec- eca ecc ece ecg ech ecn ecr ecu eea eec eee eeg een eer ega egc ege egg egh egn egr egu eha ehc ehe ehg ehh ehn ehr ehu en- ena enc ene eng enh enn enr enu era erc ere erg erh ern err eru eu- eua euc eue eug eun eur gaa gac gae gag gah gan gar gau gca gcc gce gcg gch gcn gcr gcu ge- gea gec gee geg geh gen ger geu gga ggc ggg ggh ggn ggr ggu gha ghc ghe ghg ghh ghn ghr gna gnc gne gnn gnr gnu gra grc gre grg grh grn grr gru gu- gua guc gue gug gun gur guu haa hac hae hag hah han har hau hca hcc hce hcg hch hcn hcr he- hea hec hee heg heh hen her heu hga hgc hge hgg hgh hgn hgr hgu hha hhc hhe hhg hhh hhn hhr hhu hna hnc hne hng hnh hnn hnu hr- hra hrc hre hrg hrh hrn hrr hru hua huc hue hug huh hun hur huu naa nac nae nag nah nan nar nau nca ncc nce ncg nch ncn ncr ncu ne- nea nec nee neg neh nen ner neu nga ngc nge ngg ngh ngn ngu nha nhc nhe nhg nhh nhn nhr nhu nna nnc nne nng nnh nnn nnu nra nrc nre nrg nrn nrr nru nua nuc nue nug nuh nun nur nuu ra- raa rac rae rag rah ran rar rau rca rcc rce rcg rch rcn rcr rcu re- rea rec ree reg reh ren rer reu rga rgc rge rgg rgh rgn rgr rh- rha rhc rhe rhg rhh rhn rhr rhu rna rnc rng rnh rnn rnr rnu rra rrc rrg rrh rrn rrr rru rua ruc rue rug ruh run rur ruu ua- uaa uac uae uag uah uan uar uau uca ucc uce ucg uch ucn ucr ucu uea uec uee ueg ueh uen uer uga ugc uge ugg ugh ugn ugr ugu uha uhc uhe uhh uhr uhu un- una unc une ung unh unn unr unu ur- ura urc ure urg urn urr uru uua uuc uue uug uun uur uuu