-al a-a a-c aaa aac aae aag aah aal aau aax ac- aca acc ace acg ach acl acu acx aea aec aee aeg aeh ael aeu aex ag- aga agc age agg agh agl agu agx aha ahc ahe ahg ahh ahl ahu ahx al- ala alc ale alg alh all alu alx au- aua auc aue aug auh aul aux ax- axa axe axh axl axx c-- caa cac cae cag cah cal cau cax cca ccc cce ccg cch ccl ccu ccx ce- cea cec cee ceg ceh cel ceu cex cga cgc cge cgg cgh cgl cgu ch- cha chc che chg chh chl chu chx cl- cla clc cle clg clh cll clu clx cua cuc cue cug cuh cul cuu cxc cxh cxl cxx eaa eac eae eag eah eal eau eax ec- eca ecc ece ecg ech ecl ecu ecx eea eec eee eeg eel eex ega egc ege egg egh egl egu egx eha ehc ehe ehg ehh ehl ehu ela elc ele elg elh ell elu elx eu- eua euc eue eug eul eux ex- exa exc exe exh exl exu exx gaa gac gae gag gah gal gau gca gcc gce gcg gch gcl gcu ge- gea gec gee geg geh gel geu gex gga ggc ggg ggh ggu gha ghc ghe ghg ghh ghl gla glc gle glg glh gll glu glx gu- gua guc gue gug gul guu gxa gxl haa hac hae hag hah hal hau hax hca hcc hce hcg hch hcl he- hea hec hee heg heh hel heu hex hga hgc hge hgg hgh hgl hgu hha hhc hhe hhg hhh hhl hhu hla hlc hle hlg hlh hll hlu hlx hua huc hue hug huh hul huu hux hxc hxl la- laa lac lae lag lah lal lau lax lca lcc lce lcg lch lcl lcu lcx lea lec lee leg leh lel leu lex lga lgc lge lgg lgh lgl lgu lha lhc lhh lhu lhx lla llc lle llg lll llu lua luc lue lug luh lul luu lux lxc lxx ua- uaa uac uae uag uah ual uau uca ucc uce ucg uch ucl ucu uea uec uee ueg ueh uel uga ugc uge ugg ugh ugl ugu ugx uha uhc uhe uhh uhl uhu ula ulc ule ulg ull ulu uua uuc uue uug uuu uxc uxu xaa xac xag xal xau xch xcl xcx xee xeg xel xeu xex xge xgl xla xlg xue xul xxl xxx