-al a-a a-b a-c aaa aab aac aae aag aah aal aau ab- aba abb abc abe abg abh abl abu ac- aca acb acc ace acg ach acl acu aea aeb aec aee aeg aeh ael aeu ag- aga agb agc age agg agh agl agu aha ahb ahc ahe ahg ahh ahl ahu al- ala alb alc ale alg alh all alu au- aua aub auc aue aug auh aul b-u baa bab bac bae bag bah bal bau bba bbb bbc bbe bbg bbh bbl bbu bca bcb bcc bce bcg bch bcl bcu be- bea beb bec bee beg beh bel beu bga bgb bgc bge bgg bgh bgl bgu bha bhb bhc bhe bhg bhh bhl bhu bla blb blc ble blg blh bll blu bua bub buc bue bug buh bul buu c-- caa cab cac cae cag cah cal cau cba cbb cbc cbe cbg cbh cbl cbu cca ccb ccc cce ccg cch ccl ccu ce- cea ceb cec cee ceg ceh cel ceu cga cgb cgc cge cgg cgh cgl cgu ch- cha chb chc che chg chh chl chu cl- cla clb clc cle clg clh cll clu cua cub cuc cue cug cuh cul cuu eaa eab eac eae eag eah eal eau eba ebb ebc ebe ebg ebh ebl ebu ec- eca ecb ecc ece ecg ech ecl ecu eea eeb eec eee eeg eel ega egb egc ege egg egh egl egu eha ehb ehc ehe ehg ehh ehl ehu ela elb elc ele elg elh ell elu eu- eua eub euc eue eug eul gaa gab gac gae gag gah gal gau gba gbc gbe gbg gbh gbl gbu gca gcb gcc gce gcg gch gcl gcu ge- gea geb gec gee geg geh gel geu gga ggb ggc ggg ggh ggu gha ghb ghc ghe ghg ghh ghl gla glb glc gle glg glh gll glu gu- gua gub guc gue gug gul guu haa hab hac hae hag hah hal hau hba hbb hbc hbe hbg hbh hbl hbu hca hcb hcc hce hcg hch hcl he- hea heb hec hee heg heh hel heu hga hgb hgc hge hgg hgh hgl hgu hha hhb hhc hhe hhg hhh hhl hhu hla hlb hlc hle hlg hlh hll hlu hua hub huc hue hug huh hul huu la- laa lab lac lae lag lah lal lau lba lbb lbc lbe lbg lbh lbl lbu lca lcb lcc lce lcg lch lcl lcu lea leb lec lee leg leh lel leu lga lgb lgc lge lgg lgh lgl lgu lha lhb lhc lhh lhu lla llb llc lle llg lll llu lua lub luc lue lug luh lul luu ua- uaa uab uac uae uag uah ual uau uba ubb ubc ube ubg ubh ubl ubu uca ucb ucc uce ucg uch ucl ucu uea ueb uec uee ueg ueh uel uga ugb ugc uge ugg ugh ugl ugu uha uhb uhc uhe uhh uhl uhu ula ulb ulc ule ulg ull ulu uua uuc uue uug uuu