-er -ic a-a a-c a-i aaa aac aad aae aag aah aai aar ac- aca acc acd ace acg ach aci acr ad- ada adc add ade adg adh adi adr aea aec aed aee aeg aeh aei aer ag- aga agc agd age agg agh agi agr aha ahc ahd ahe ahg ahh ahi ahr ai- aia aic aid aie aig aih aii air ar- ara arc ard are arg arh ari arr c-- caa cac cad cae cag cah cai car cca ccc ccd cce ccg cch cci ccr cda cdc cdd cde cdg cdh cdi cdr ce- cea cec ced cee ceg ceh cei cer cga cgc cgd cge cgg cgh cgi cgr ch- cha chc chd che chg chh chi chr ci- cia cic cid cie cig cih cii cir cra crc crd cre crg crh cri crr daa dac dad dae dag dah dai dar dca dcc dcd dce dcg dci dcr dda ddc ddd dde ddg ddh ddi ddr de- dea dec ded dee deg deh dei der dga dgc dgd dge dgg dgh dgi dgr dh- dha dhc dhd dhe dhh dhi dhr di- dia dic did die dig dih dii dir dra drc drd dre drg dri drr eaa eac ead eae eag eah eai ear ec- eca ecc ecd ece ecg ech eci ecr ed- eda edc edd ede edg edh edi edr eea eec eed eee eeg eer ega egc egd ege egg egh egi egr eha ehc ehd ehe ehg ehh ehi ehr eia eic eid eie eig eii eir era erc erd ere erg erh eri err g-d gaa gac gad gae gag gah gai gar gca gcc gcd gce gcg gch gci gcr gda gdc gdd gde gdh gdi gdr ge- gea gec ged gee geg geh gei ger gga ggc ggd ggg ggh ggi ggr gha ghc ghd ghe ghg ghh ghi ghr gia gic gid gie gig gih gii gir gra grc grd gre grg grh gri grr h-i haa hac had hae hag hah hai har hca hcc hcd hce hcg hch hci hcr hda hdc hdd hde hdg hdh hdi hdr he- hea hec hed hee heg heh hei her hga hgc hge hgg hgh hgi hgr hha hhc hhd hhe hhg hhh hhi hhr hia hic hid hie hig hih hii hir hr- hra hrc hrd hre hrg hrh hri hrr i-d ia- iaa iac iad iae iag iah iai iar ica icc icd ice icg ich ici icr ida idc idd ide idg idh idi idr ie- iea iec ied iee ieg iei ier iga igc igd ige igg igh igi igr iha ihc ihd ihe ihg ihh ihi ihr iia iic iid iie iih iii iir ir- ira irc ird ire irg iri irr ra- raa rac rad rae rag rah rai rar rca rcc rcd rce rcg rch rci rcr rda rdc rdd rde rdg rdh rdi rdr re- rea rec red ree reg reh rei rer rga rgc rgd rge rgg rgh rgi rgr rh- rha rhc rhd rhe rhg rhh rhi rhr ria ric rid rie rig rih rii rir rra rrc rrd rrg rrh rri rrr