-al a-a a-c a-t aaa aac aae aaf aag aal aat ac- aca acc ace acf acg acl act aea aec aee aef aeg ael aet af- afa afc afe aff afg afl aft ag- aga agc age agf agg agl agt al- ala alc ale alf alg all alt at- ata atc ate atf atg atl att c-- caa cac cae caf cag cal cat cca ccc cce ccf ccg ccl cct ce- cea cec cee cef ceg cel cet cfa cfc cfe cff cfg cfl cft cga cgc cge cgg cgl cgt cl- cla clc cle clf clg cll clt cta ctc cte ctf ctg ctl ctt eaa eac eae eaf eag eal eat ec- eca ecc ece ecf ecg ecl ect eea eec eee eef eeg eel eet ef- efa efc efe eff efg efl eft ega egc ege egf egg egl egt ela elc ele elf elg ell elt eta etc ete etf etg etl ett faa fac fae faf fag fal fat fca fcc fce fcf fcg fcl fct fea fec fee fef feg fel fet ffa ffc ffe fff ffg ffl fft fga fgc fge fgf fgg fgl fgt fla flc fle flf flg fll flt fta ftc fte ftf ftg ftl ftt gaa gac gae gaf gag gal gat gca gcc gce gcf gcg gcl gct ge- gea gec gee gef geg gel get gfa gfc gfe gff gfl gft gga ggc ggg ggt gla glc gle glf glg gll glt gta gtc gte gtf gtg gtl gtt la- laa lac lae laf lag lal lat lca lcc lce lcf lcg lcl lct lea lec lee lef leg lel let lfa lfc lfe lff lfg lfl lft lga lgc lge lgf lgg lgl lgt lla llc lle llf llg lll llt lta ltc lte ltf ltg ltl ltt taa tac tae taf tag tal tat tca tcc tce tcf tcg tcl tct te- tea tec tee tef teg tel tet tfa tfc tfe tff tfg tfl tft tga tgc tge tgf tgg tgl tgt tla tlc tle tlf tlg tll tlt tta ttc tte ttf ttg ttl ttt