-al a-a a-b a-c aaa aab aac aae aag aak aal aam ab- aba abb abc abe abg abk abl abm ac- aca acb acc ace acg ack acl acm aea aeb aec aee aeg aek ael aem ag- aga agb agc age agg agk agl agm aka akb akc ake akg akk akl akm al- ala alb alc ale alg alk all alm ama amb amc ame amg amk aml amm baa bab bac bae bag bak bal bam bba bbb bbc bbe bbg bbk bbl bbm bca bcb bcc bce bcg bck bcl bcm be- bea beb bec bee beg bek bel bem bga bgb bgc bge bgg bgk bgl bgm bka bkb bkc bke bkg bkk bkl bkm bla blb blc ble blg blk bll blm bma bmb bmc bme bmg bmk bml bmm c-- caa cab cac cae cag cak cal cam cba cbb cbc cbe cbg cbk cbl cbm cca ccb ccc cce ccg cck ccl ccm ce- cea ceb cec cee ceg cek cel cem cga cgb cgc cge cgg cgl cgm cka ckb ckc ckm cl- cla clb clc cle clg clk cll clm cma cmb cmc cme cmg cmk cml cmm eaa eab eac eae eag eak eal eam eba ebb ebc ebe ebg ebk ebl ebm ec- eca ecb ecc ece ecg eck ecl ecm eea eeb eec eee eeg eek eel eem ega egb egc ege egg egl egm eka ekb ekc eke ekg ekl ela elb elc ele elg elk ell elm em- ema emb emc eme emg emk eml emm gaa gab gac gae gag gak gal gam gba gbc gbe gbg gbk gbl gbm gca gcb gcc gce gcg gck gcl gcm ge- gea geb gec gee geg gek gel gem gga ggb ggc ggg ggm gka gkb gkm gla glb glc gle glg glk gll glm gma gmb gmc gme gmg gml gmm ka- kaa kab kac kae kag kak kal kam kba kbb kbc kbe kbk kbl kbm kca kcb kcc kce kcg kck kcl kcm ke- kea keb kec kee keg kek kel kem kga kgb kgc kgl kgm kkb kkc kke kkk kkl kkm kl- kla klb klc klg klm kma kmb kmc kme kmg kmk kml kmm la- laa lab lac lae lag lak lal lam lba lbb lbc lbe lbg lbk lbl lbm lca lcb lcc lce lcg lck lcl lcm lea leb lec lee leg lek lel lem lga lgb lgc lge lgg lgk lgl lgm lka lkb lkg lkl lla llb llc lle llg llk lll llm lma lmb lmc lme lmg lmk lml lmm maa mab mac mae mag mak mal mam mba mbb mbc mbe mbg mbk mbl mbm mc- mca mcb mcc mce mcg mck mcl mcm mea meb mec mee meg mek mel mem mga mgb mgc mge mgk mgl mgm mka mkb mkc mke mkg mkk mkl mkm mla mlb mlc mle mlg mlk mll mlm mma mmb mmc mme mmg mmk mml mmm