-al a-a a-b a-c aaa aab aac aae aag aah aal aan aau ab- aba abb abc abe abg abh abl abn abu ac- aca acb acc ace acg ach acl acn acu aea aeb aec aee aeg aeh ael aen aeu ag- aga agb agc age agg agh agl agn agu aha ahb ahc ahe ahg ahh ahl ahn ahu al- ala alb alc ale alg alh all aln alu an- ana anb anc ane ang anh anl ann anu au- aua aub auc aue aug auh aul aun b-u baa bab bac bae bag bah bal ban bau bba bbb bbc bbe bbg bbh bbl bbn bbu bca bcb bcc bce bcg bch bcl bcn bcu be- bea beb bec bee beg beh bel ben beu bga bgb bgc bge bgg bgh bgl bgn bgu bha bhb bhc bhe bhg bhh bhl bhu bla blb blc ble blg blh bll bln blu bna bnb bnc bne bng bnl bnn bnu bua bub buc bue bug buh bul bun buu c-- caa cab cac cae cag cah cal can cau cba cbb cbc cbe cbg cbh cbl cbn cbu cca ccb ccc cce ccg cch ccl ccn ccu ce- cea ceb cec cee ceg ceh cel cen ceu cga cgb cgc cge cgg cgh cgl cgn cgu ch- cha chb chc che chg chh chl chn chu cl- cla clb clc cle clg clh cll cln clu cn- cna cnb cnc cne cng cnh cnl cnn cnu cua cub cuc cue cug cuh cul cun cuu eaa eab eac eae eag eah eal ean eau eba ebb ebc ebe ebg ebh ebl ebn ebu ec- eca ecb ecc ece ecg ech ecl ecn ecu eea eeb eec eee eeg eel een ega egb egc ege egg egh egl egn egu eha ehb ehc ehe ehg ehh ehl ehn ehu ela elb elc ele elg elh ell eln elu en- ena enb enc ene eng enh enl enn enu eu- eua eub euc eue eug eul eun gaa gab gac gae gag gah gal gan gau gba gbc gbe gbg gbh gbl gbn gbu gca gcb gcc gce gcg gch gcl gcn gcu ge- gea geb gec gee geg geh gel gen geu gga ggb ggc ggg ggh ggn ggu gha ghb ghc ghe ghg ghh ghl ghn gla glb glc gle glg glh gll gln glu gna gnb gnc gne gnl gnn gnu gu- gua gub guc gue gug gul gun guu haa hab hac hae hag hah hal han hau hba hbb hbc hbe hbg hbh hbl hbn hbu hca hcb hcc hce hcg hch hcl hcn he- hea heb hec hee heg heh hel hen heu hga hgb hgc hge hgg hgh hgl hgn hgu hha hhb hhc hhe hhg hhh hhl hhn hhu hla hlb hlc hle hlg hlh hll hln hlu hna hnb hnc hne hng hnh hnl hnn hnu hua hub huc hue hug huh hul hun huu la- laa lab lac lae lag lah lal lan lau lba lbb lbc lbe lbg lbh lbl lbu lca lcb lcc lce lcg lch lcl lcn lcu lea leb lec lee leg leh lel len leu lga lgb lgc lge lgg lgh lgl lgn lgu lha lhb lhc lhh lhu lla llb llc lle llg lll lln llu lna lnb lnc lne lng lnh lnl lnn lnu lua lub luc lue lug luh lul lun luu naa nab nac nae nag nah nal nan nau nba nbb nbc nbe nbg nbl nbn nbu nca ncb ncc nce ncg nch ncl ncn ncu ne- nea neb nec nee neg neh nel nen neu nga ngb ngc nge ngg ngh ngl ngn ngu nha nhb nhc nhe nhg nhh nhl nhn nhu nla nlb nlc nle nlg nlh nll nln nlu nna nnb nnc nne nng nnh nnl nnn nnu nua nub nuc nue nug nuh nul nun nuu ua- uaa uab uac uae uag uah ual uan uau uba ubb ubc ube ubg ubh ubl ubn ubu uca ucb ucc uce ucg uch ucl ucn ucu uea ueb uec uee ueg ueh uel uen uga ugb ugc uge ugg ugh ugl ugn ugu uha uhb uhc uhe uhh uhl uhu ula ulb ulc ule ulg ull uln ulu un- una unb unc une ung unh unl unn unu uua uuc uue uug uun uuu