a-a a-b aaa aab aad aae aag aam aas ab- aba abb abd abe abg abm abs ad- ada adb add ade adg adm ads aea aeb aed aee aeg aem aes ag- aga agb agd age agg agm ags ama amb amd ame amg amm ams as- asa asb asd ase asg asm ass baa bab bad bae bag bam bas bba bbb bbd bbe bbg bbm bbs bda bdb bdd bde bdg bdm bds be- bea beb bed bee beg bem bes bga bgb bgd bge bgg bgm bgs bma bmb bmd bme bmg bmm bms bsa bsb bsd bse bsg bsm bss daa dab dad dae dag dam das dba dbb dbd dbe dbg dbm dbs dda ddb ddd dde ddg ddm dds de- dea deb ded dee deg dem des dga dgd dge dgg dgm dgs dma dmb dmd dme dmg dmm dms dsa dsb dsd dse dsg dsm dss eaa eab ead eae eag eam eas eba ebb ebd ebe ebg ebm ebs ed- eda edb edd ede edg edm eds eea eeb eed eee eeg eem ees ega egb egd ege egg egm egs em- ema emb emd eme emg emm ems es- esa esb esd ese esg esm ess g-d gaa gab gad gae gag gam gas gba gbd gbe gbg gbm gbs gda gdb gdd gde gdm gds ge- gea geb ged gee geg gem ges gga ggb ggd ggg ggm ggs gma gmb gmd gme gmg gmm gms gsa gsb gsd gse gsg gsm gss maa mab mad mae mag mam mas mba mbb mbd mbe mbg mbm mbs mda mdb mdd mde mdg mdm mds mea meb med mee meg mem mes mga mgb mgd mge mgm mgs mma mmb mmd mme mmg mmm mms msa msb msd mse msg msm mss saa sab sad sae sag sam sas sba sbb sbd sbe sbg sbm sbs sda sdb sdd sde sdg sdm sds se- sea seb sed see seg sem ses sga sgb sgd sge sgg sgm sgs sma smb smd sme smg smm sms ss- ssa ssb ssd sse ssg ssm sss