-al a-a a-c aaa aac aae aag aal aas aau aax ac- aca acc ace acg acl acs acu acx aea aec aee aeg ael aes aeu aex ag- aga agc age agg agl ags agu agx al- ala alc ale alg all als alu alx as- asa asc ase asg asl ass asu asx au- aua auc aue aug aul aus aux ax- axa axe axl axs axx c-- caa cac cae cag cal cas cau cax cca ccc cce ccg ccl ccs ccu ccx ce- cea cec cee ceg cel ces ceu cex cga cgc cge cgg cgl cgs cgu cl- cla clc cle clg cll cls clu clx csa csc cse csg csl css csu csx cua cuc cue cug cul cus cuu cxc cxl cxs cxx eaa eac eae eag eal eas eau eax ec- eca ecc ece ecg ecl ecs ecu ecx eea eec eee eeg eel ees eex ega egc ege egg egl egs egu egx ela elc ele elg ell els elu elx es- esa esc ese esg esl ess esu esx eu- eua euc eue eug eul eus eux ex- exa exc exe exl exs exu exx gaa gac gae gag gal gas gau gca gcc gce gcg gcl gcs gcu ge- gea gec gee geg gel ges geu gex gga ggc ggg ggs ggu gla glc gle glg gll gls glu glx gsa gsc gse gsg gsl gss gsu gsx gu- gua guc gue gug gul gus guu gxa gxl gxs la- laa lac lae lag lal las lau lax lca lcc lce lcg lcl lcs lcu lcx lea lec lee leg lel les leu lex lga lgc lge lgg lgl lgs lgu lla llc lle llg lll lls llu lsa lsc lse lsg lsl lss lsu lua luc lue lug lul lus luu lux lxc lxx saa sac sae sag sal sas sau sax sca scc sce scg scl scs scu scx se- sea sec see seg sel ses seu sex sga sgc sge sgg sgl sgs sgu sgx sla slc sle slg sll sls slu slx ss- ssa ssc sse ssg ssl sss ssu ssx sua suc sue sug sul sus suu sux sxc sxl sxs sxu ua- uaa uac uae uag ual uas uau uca ucc uce ucg ucl ucs ucu uea uec uee ueg uel ues uga ugc uge ugg ugl ugs ugu ugx ula ulc ule ulg ull uls ulu usa usc use usg usl uss usu usx uua uuc uue uug uus uuu uxc uxu xaa xac xag xal xas xau xcl xcx xee xeg xel xes xeu xex xge xgl xla xlg xls xsa xsc xsl xss xue xul xus xxl xxx