-er a-a a-c aaa aac aad aae aag aaj aar ac- aca acc acd ace acg acj acr ad- ada adc add ade adg adj adr aea aec aed aee aeg aej aer ag- aga agc agd age agg agj agr aja ajc ajd aje ajj ajr ar- ara arc ard are arg arj arr c-- c-j caa cac cad cae cag caj car cca ccc ccd cce ccg ccj ccr cda cdc cdd cde cdg cdj cdr ce- cea cec ced cee ceg cej cer cga cgc cgd cge cgg cgr cja cjc cjd cjg cjr cra crc crd cre crg crj crr daa dac dad dae dag daj dar dca dcc dcd dce dcg dcr dda ddc ddd dde ddg ddr de- dea dec ded dee deg dej der dga dgc dgd dge dgg dgr dj- dja djc djd dje djg dra drc drd dre drg drj drr eaa eac ead eae eag eaj ear ec- eca ecc ecd ece ecg ecj ecr ed- eda edc edd ede edg edj edr eea eec eed eee eeg eer ega egc egd ege egg egr eja ejc ejd era erc erd ere erg err g-d gaa gac gad gae gag gaj gar gca gcc gcd gce gcg gcr gda gdc gdd gde gdr ge- gea gec ged gee geg ger gga ggc ggd ggg ggj ggr gja gjc gje gjg gjr gra grc grd gre grg grj grr j-d jaa jac jad jae jag jaj jar jca jcc jcd jce jcr jda jdc jde jdg jdr jea jec jed jee jeg jej jer jga jge jgr jja jjc jjg jjj jjr jra jrc jrg jrr ra- raa rac rad rae rag raj rar rca rcc rcd rce rcg rcj rcr rda rdc rdd rde rdg rdj rdr re- rea rec red ree reg rer rga rgc rgd rge rgg rgr rja rjc rjg rjr rra rrc rrd rrg rrr