-er -ic -th a-a a-c a-i a-t aaa aac aad aae aag aah aai aar aat ac- aca acc acd ace acg ach aci acr act ad- ada adc add ade adg adh adi adr adt aea aec aed aee aeg aeh aei aer aet ag- aga agc agd age agg agh agi agr agt aha ahc ahd ahe ahg ahh ahi ahr aht ai- aia aic aid aie aig aih aii air ait ar- ara arc ard are arg arh ari arr art at- ata atc atd ate atg ath ati atr att c-- caa cac cad cae cag cah cai car cat cca ccc ccd cce ccg cch cci ccr cct cda cdc cdd cde cdg cdh cdi cdr cdt ce- cea cec ced cee ceg ceh cei cer cet cga cgc cgd cge cgg cgh cgi cgr cgt ch- cha chc chd che chg chh chi chr cht ci- cia cic cid cie cig cih cii cir cit cra crc crd cre crg crh cri crr crt cta ctc ctd cte ctg cth cti ctr ctt daa dac dad dae dag dah dai dar dat dca dcc dcd dce dcg dci dcr dct dda ddc ddd dde ddg ddh ddi ddr ddt de- dea dec ded dee deg deh dei der det dga dgc dgd dge dgg dgh dgi dgr dgt dh- dha dhc dhd dhe dhh dhi dhr dht di- dia dic did die dig dih dii dir dit dra drc drd dre drg dri drr drt dta dtc dtd dte dtg dth dti dtr dtt eaa eac ead eae eag eah eai ear eat ec- eca ecc ecd ece ecg ech eci ecr ect ed- eda edc edd ede edg edh edi edr edt eea eec eed eee eeg eer eet ega egc egd ege egg egh egi egr egt eha ehc ehd ehe ehg ehh ehi ehr eht eia eic eid eie eig eii eir eit era erc erd ere erg erh eri err ert eta etc etd ete etg eth eti etr ett g-d gaa gac gad gae gag gah gai gar gat gca gcc gcd gce gcg gch gci gcr gct gda gdc gdd gde gdh gdi gdr gdt ge- gea gec ged gee geg geh gei ger get gga ggc ggd ggg ggh ggi ggr ggt gha ghc ghd ghe ghg ghh ghi ghr ght gia gic gid gie gig gih gii gir git gra grc grd gre grg grh gri grr grt gta gtc gtd gte gtg gth gti gtr gtt h-i haa hac had hae hag hah hai har hat hca hcc hcd hce hcg hch hci hcr hct hda hdc hdd hde hdg hdh hdi hdr hdt he- hea hec hed hee heg heh hei her het hga hgc hge hgg hgh hgi hgr hgt hha hhc hhd hhe hhg hhh hhi hhr hht hia hic hid hie hig hih hii hir hit hr- hra hrc hrd hre hrg hrh hri hrr hrt hta htc htd hte htg hth hti htr htt i-d ia- iaa iac iad iae iag iah iai iar iat ica icc icd ice icg ich ici icr ict ida idc idd ide idg idh idi idr idt ie- iea iec ied iee ieg iei ier iet iga igc igd ige igg igh igi igr igt iha ihc ihd ihe ihg ihh ihi ihr iht iia iic iid iie iih iii iir iit ir- ira irc ird ire irg iri irr irt ita itc itd ite itg ith iti itt ra- raa rac rad rae rag rah rai rar rat rca rcc rcd rce rcg rch rci rcr rct rda rdc rdd rde rdg rdh rdi rdr rdt re- rea rec red ree reg reh rei rer ret rga rgc rgd rge rgg rgh rgi rgr rgt rh- rha rhc rhd rhe rhg rhh rhi rhr rht ria ric rid rie rig rih rii rir rit rra rrc rrd rrg rrh rri rrr rrt rta rtc rtd rte rtg rti rtr rtt taa tac tad tae tag tah tai tar tat tca tcc tcd tce tcg tch tci tcr tct tda tdc tdd tde tdg tdh tdi tdr tdt te- tea tec ted tee teg teh tei ter tet tga tgc tge tgg tgh tgi tgr tgt th- tha thc thd the thg thh thi thr tht tia tic tid tie tig tih tii tir tit tra trc trd tre trg trh tri trr trt tta ttc ttd tte ttg tth tti ttr ttt