-al a-a a-c aaa aac aad aae aag aal ac- aca acc acd ace acg acl ad- ada adc add ade adg adl aea aec aed aee aeg ael ag- aga agc agd age agg agl al- ala alc ald ale alg all c-- caa cac cad cae cag cal cca ccc ccd cce ccg ccl cda cdc cdd cde cdg cdl ce- cea cec ced cee ceg cel cga cgc cgd cge cgg cgl cl- cla clc cld cle clg cll daa dac dad dae dag dal dca dcc dcd dce dcg dcl dda ddc ddd dde ddg ddl de- dea dec ded dee deg del dga dgc dgd dge dgg dgl dl- dla dlc dld dle dlg dll eaa eac ead eae eag eal ec- eca ecc ecd ece ecg ecl ed- eda edc edd ede edg edl eea eec eed eee eeg eel ega egc egd ege egg egl ela elc eld ele elg ell g-d gaa gac gad gae gag gal gca gcc gcd gce gcg gcl gda gdc gdd gde gdl ge- gea gec ged gee geg gel gga ggc ggd ggg gla glc gld gle glg gll la- laa lac lad lae lag lal lca lcc lcd lce lcg lcl lda ldc ldd lde ldg ldl lea lec led lee leg lel lga lgc lgd lge lgg lgl lla llc lld lle llg lll