a-a a-b aaa aab aad aae aah aam aao aas ab- aba abb abd abe abh abm abo abs ad- ada adb add ade adh adm ado ads aea aeb aed aee aeh aem aeo aes aha ahb ahd ahe ahh ahm aho ahs ama amb amd ame amh amm amo ams aoa aob aod aoe aoh aom aoo aos as- asa asb asd ase ash asm aso ass baa bab bad bae bah bam bao bas bba bbb bbd bbe bbh bbm bbo bbs bda bdb bdd bde bdh bdm bdo bds be- bea beb bed bee beh bem beo bes bha bhb bhd bhe bhh bhm bho bhs bma bmb bmd bme bmh bmm bmo bms boa bob bod boe boh bom boo bos bsa bsb bsd bse bsh bsm bso bss daa dab dad dae dah dam dao das dba dbb dbd dbe dbh dbm dbo dbs dda ddb ddd dde ddh ddm ddo dds de- dea deb ded dee deh dem deo des dh- dha dhb dhd dhe dhh dhm dho dhs dma dmb dmd dme dmh dmm dmo dms doa dob dod doe doh dom doo dos dsa dsb dsd dse dsh dsm dso dss eaa eab ead eae eah eam eao eas eba ebb ebd ebe ebh ebm ebo ebs ed- eda edb edd ede edh edm edo eds eea eeb eed eee eem eeo ees eha ehb ehd ehe ehh ehm eho ehs em- ema emb emd eme emh emm emo ems eo- eoa eob eod eoe eoh eom eoo eos es- esa esb esd ese esh esm eso ess haa hab had hae hah ham hao has hba hbb hbd hbe hbh hbm hbo hbs hda hdb hdd hde hdh hdm hdo hds he- hea heb hed hee heh hem heo hes hha hhb hhd hhe hhh hhm hho hhs hma hmb hmd hme hmh hmm hmo hms hoa hob hod hoe hoh hom hoo hos hsa hsb hsd hse hsh hsm hss m-o maa mab mad mae mah mam mao mas mba mbb mbd mbe mbh mbm mbo mbs mda mdb mdd mde mdh mdm mdo mds mea meb med mee meh mem meo mes mha mhd mhh mhm mho mhs mma mmb mmd mme mmh mmm mmo mms moa mob mod moe moh mom moo mos msa msb msd mse msh msm mso mss oaa oab oad oae oah oam oao oas ob- oba obb obd obe obh obm obo obs oda odb odd ode odh odm odo ods oea oeb oed oee oeh oem oeo oes oha ohd ohe ohh ohm oho ohs om- oma omb omd ome omh omm omo oms oo- ooa oob ood ooh oom ooo oos os- osa osb osd ose osh osm oso oss saa sab sad sae sah sam sao sas sba sbb sbd sbe sbh sbm sbo sbs sda sdb sdd sde sdh sdm sdo sds se- sea seb sed see seh sem seo ses sh- sha shb shd she shh shm sho shs sma smb smd sme smh smm smo sms soa sob sod soe soh som soo sos ss- ssa ssb ssd sse ssh ssm sso sss