-al -er -ic a-a a-c a-i a-t aaa aac aae aag aai aal aar aat ac- aca acc ace acg aci acl acr act aea aec aee aeg aei ael aer aet ag- aga agc age agg agi agl agr agt ai- aia aic aie aig aii ail air ait al- ala alc ale alg ali all alr alt ar- ara arc are arg ari arl arr art at- ata atc ate atg ati atl atr att c-- caa cac cae cag cai cal car cat cca ccc cce ccg cci ccl ccr cct ce- cea cec cee ceg cei cel cer cet cga cgc cge cgg cgi cgl cgr cgt ci- cia cic cie cig cii cil cir cit cl- cla clc cle clg cli cll clr clt cra crc cre crg cri crl crr crt cta ctc cte ctg cti ctl ctr ctt eaa eac eae eag eai eal ear eat ec- eca ecc ece ecg eci ecl ecr ect eea eec eee eeg eel eer eet ega egc ege egg egi egl egr egt eia eic eie eig eii eil eir eit ela elc ele elg eli ell elr elt era erc ere erg eri erl err ert eta etc ete etg eti etl etr ett gaa gac gae gag gai gal gar gat gca gcc gce gcg gci gcl gcr gct ge- gea gec gee geg gei gel ger get gga ggc ggg ggi ggr ggt gia gic gie gig gii gil gir git gla glc gle glg gli gll glr glt gra grc gre grg gri grl grr grt gta gtc gte gtg gti gtl gtr gtt ia- iaa iac iae iag iai ial iar iat ica icc ice icg ici icl icr ict ie- iea iec iee ieg iei iel ier iet iga igc ige igg igi igl igr igt iia iic iie iii iil iir iit il- ila ilc ile ilg ili ill ilr ilt ir- ira irc ire irg iri irl irr irt ita itc ite itg iti itl itt la- laa lac lae lag lai lal lar lat lca lcc lce lcg lci lcl lcr lct lea lec lee leg lei lel ler let lga lgc lge lgg lgi lgl lgr lgt lia lic lie lig lii lil lir lit lla llc lle llg lli lll llr llt lra lrc lrg lri lrr lrt lta ltc lte ltg lti ltl ltr ltt ra- raa rac rae rag rai ral rar rat rca rcc rce rcg rci rcl rcr rct re- rea rec ree reg rei rel rer ret rga rgc rge rgg rgi rgr rgt ria ric rie rig rii ril rir rit rla rlc rle rlg rli rll rlr rlt rra rrc rrg rri rrl rrr rrt rta rtc rte rtg rti rtl rtr rtt taa tac tae tag tai tal tar tat tca tcc tce tcg tci tcl tcr tct te- tea tec tee teg tei tel ter tet tga tgc tge tgg tgi tgl tgr tgt tia tic tie tig tii til tir tit tla tlc tle tlg tli tll tlr tlt tra trc tre trg tri trl trr trt tta ttc tte ttg tti ttl ttr ttt