-er -th a-a a-c a-t aaa aac aae aag aah aao aar aat ac- aca acc ace acg ach aco acr act aea aec aee aeg aeh aeo aer aet ag- aga agc age agg agh ago agr agt aha ahc ahe ahg ahh aho ahr aht aoa aoc aoe aog aoh aoo aor aot ar- ara arc are arg arh aro arr art at- ata atc ate atg ath ato atr att c-- caa cac cae cag cah cao car cat cca ccc cce ccg cch cco ccr cct ce- cea cec cee ceg ceh ceo cer cet cga cgc cge cgg cgh cgo cgr cgt ch- cha chc che chg chh cho chr cht co- coa coc coe cog coh coo cor cot cra crc cre crg crh cro crr crt cta ctc cte ctg cth cto ctr ctt eaa eac eae eag eah eao ear eat ec- eca ecc ece ecg ech eco ecr ect eea eec eee eeg eeo eer eet ega egc ege egg egh ego egr egt eha ehc ehe ehg ehh eho ehr eht eo- eoa eoc eoe eog eoh eoo eor eot era erc ere erg erh ero err ert eta etc ete etg eth eto etr ett gaa gac gae gag gah gao gar gat gca gcc gce gcg gch gco gcr gct ge- gea gec gee geg geh geo ger get gga ggc ggg ggh ggo ggr ggt gha ghc ghe ghg ghh gho ghr ght goa goc goe gog goh goo gor got gra grc gre grg grh gro grr grt gta gtc gte gtg gth gto gtr gtt haa hac hae hag hah hao har hat hca hcc hce hcg hch hco hcr hct he- hea hec hee heg heh heo her het hga hgc hge hgg hgh hgo hgr hgt hha hhc hhe hhg hhh hho hhr hht hoa hoc hoe hog hoh hoo hor hot hr- hra hrc hre hrg hrh hro hrr hrt hta htc hte htg hth hto htr htt oaa oac oae oag oah oao oar oat oc- oca occ ocg och oco ocr oct oea oec oee oeg oeh oeo oer oet oga ogc oge ogg ogh ogo ogt oha ohc ohe ohg ohh oho ohr oht oo- ooa ooc oog ooh ooo oor oot or- ora orc ore org orh oro orr ort ot- ota otc ote otg oth oto otr ott ra- raa rac rae rag rah rao rar rat rca rcc rce rcg rch rco rcr rct re- rea rec ree reg reh reo rer ret rga rgc rge rgg rgh rgo rgr rgt rh- rha rhc rhe rhg rhh rho rhr rht roa roc roe rog roh roo ror rot rra rrc rrg rrh rrr rrt rta rtc rte rtg rto rtr rtt taa tac tae tag tah tao tar tat tca tcc tce tcg tch tco tcr tct te- tea tec tee teg teh teo ter tet tga tgc tge tgg tgh tgo tgr tgt th- tha thc the thg thh tho thr tht to- toa toc toe tog toh too tor tot tra trc tre trg trh tro trr trt tta ttc tte ttg tth tto ttr ttt