a-a a-b a-c aaa aab aac aad aae aam aao aas aau ab- aba abb abc abd abe abm abo abs abu ac- aca acb acc acd ace acm aco acs acu ad- ada adb adc add ade adm ado ads adu aea aeb aec aed aee aem aeo aes aeu ama amb amc amd ame amm amo ams amu aoa aob aoc aod aoe aom aoo aos aou as- asa asb asc asd ase asm aso ass asu au- aua aub auc aud aue aum auo aus b-u baa bab bac bad bae bam bao bas bau bba bbb bbc bbd bbe bbm bbo bbs bbu bca bcb bcc bcd bce bcm bco bcs bcu bda bdb bdc bdd bde bdm bdo bds bdu be- bea beb bec bed bee bem beo bes beu bma bmb bmc bmd bme bmm bmo bms bmu boa bob boc bod boe bom boo bos bou bsa bsb bsc bsd bse bsm bso bss bsu bua bub buc bud bue bum buo bus buu c-- caa cab cac cad cae cam cao cas cau cba cbb cbc cbd cbe cbm cbo cbs cbu cca ccb ccc ccd cce ccm cco ccs ccu cda cdb cdc cdd cde cdm cdo cds cdu ce- cea ceb cec ced cee cem ceo ces ceu cma cmb cmc cmd cme cmm cmo cms cmu co- coa cob coc cod coe com coo cos cou csa csb csc csd cse csm cso css csu cua cub cuc cud cue cum cuo cus cuu daa dab dac dad dae dam dao das dau dba dbb dbc dbd dbe dbm dbo dbs dbu dca dcb dcc dcd dce dcm dco dcs dcu dda ddb ddc ddd dde ddm ddo dds ddu de- dea deb dec ded dee dem deo des deu dma dmb dmc dmd dme dmm dmo dms dmu doa dob doc dod doe dom doo dos dou dsa dsb dsc dsd dse dsm dso dss dsu dua dub duc dud due dum duo dus eaa eab eac ead eae eam eao eas eau eba ebb ebc ebd ebe ebm ebo ebs ebu ec- eca ecb ecc ecd ece ecm eco ecs ecu ed- eda edb edc edd ede edm edo eds edu eea eeb eec eed eee eem eeo ees em- ema emb emc emd eme emm emo ems emu eo- eoa eob eoc eod eoe eom eoo eos eou es- esa esb esc esd ese esm eso ess esu eu- eua eub euc eud eue eus m-o maa mab mac mad mae mam mao mas mau mba mbb mbc mbd mbe mbm mbo mbs mbu mc- mca mcb mcc mcd mce mcm mco mcs mcu mda mdb mdc mdd mde mdm mdo mds mdu mea meb mec med mee mem meo mes meu mma mmb mmc mmd mme mmm mmo mms mmu moa mob moc mod moe mom moo mos mou msa msb msc msd mse msm mso mss msu mua mub muc mud mue mum mus muu oaa oab oac oad oae oam oao oas oau ob- oba obb obc obd obe obm obo obs obu oc- oca ocb occ ocd ocm oco ocs ocu oda odb odc odd ode odm odo ods odu oea oeb oec oed oee oem oeo oes om- oma omb omc omd ome omm omo oms omu oo- ooa oob ooc ood oom ooo oos os- osa osb osc osd ose osm oso oss osu ou- oua ouc oud oue oum ouo ous saa sab sac sad sae sam sao sas sau sba sbb sbc sbd sbe sbm sbo sbs sbu sca scb scc scd sce scm sco scs scu sda sdb sdc sdd sde sdm sdo sds sdu se- sea seb sec sed see sem seo ses seu sma smb smc smd sme smm smo sms smu soa sob soc sod soe som soo sos sou ss- ssa ssb ssc ssd sse ssm sso sss ssu sua sub suc sud sue sum suo sus suu ua- uaa uab uac uad uae uam uao uas uau uba ubb ubc ube ubo ubs ubu uca ucb ucc ucd uce ucm uco ucs ucu uda udb udc udd ude udm udo uds udu uea ueb uec ued uee uem ues um- uma umb umc umd ume umm umo ums umu uoa uob uoc uod uoe uom uoo uos usa usb usc usd use usm uso uss usu uua uuc uue uum uus uuu