-al a-a a-b a-c aaa aab aac aae aag aal aam ab- aba abb abc abe abg abl abm ac- aca acb acc ace acg acl acm aea aeb aec aee aeg ael aem ag- aga agb agc age agg agl agm al- ala alb alc ale alg all alm ama amb amc ame amg aml amm baa bab bac bae bag bal bam bba bbb bbc bbe bbg bbl bbm bca bcb bcc bce bcg bcl bcm be- bea beb bec bee beg bel bem bga bgb bgc bge bgg bgl bgm bla blb blc ble blg bll blm bma bmb bmc bme bmg bml bmm c-- caa cab cac cae cag cal cam cba cbb cbc cbe cbg cbl cbm cca ccb ccc cce ccg ccl ccm ce- cea ceb cec cee ceg cel cem cga cgb cgc cge cgg cgl cgm cl- cla clb clc cle clg cll clm cma cmb cmc cme cmg cml cmm eaa eab eac eae eag eal eam eba ebb ebc ebe ebg ebl ebm ec- eca ecb ecc ece ecg ecl ecm eea eeb eec eee eeg eel eem ega egb egc ege egg egl egm ela elb elc ele elg ell elm em- ema emb emc eme emg eml emm gaa gab gac gae gag gal gam gba gbc gbe gbg gbl gbm gca gcb gcc gce gcg gcl gcm ge- gea geb gec gee geg gel gem gga ggb ggc ggg ggm gla glb glc gle glg gll glm gma gmb gmc gme gmg gml gmm la- laa lab lac lae lag lal lam lba lbb lbc lbe lbg lbl lbm lca lcb lcc lce lcg lcl lcm lea leb lec lee leg lel lem lga lgb lgc lge lgg lgl lgm lla llb llc lle llg lll llm lma lmb lmc lme lmg lml lmm maa mab mac mae mag mal mam mba mbb mbc mbe mbg mbl mbm mc- mca mcb mcc mce mcg mcl mcm mea meb mec mee meg mel mem mga mgb mgc mge mgl mgm mla mlb mlc mle mlg mll mlm mma mmb mmc mme mmg mml mmm