-al a-a a-b a-c aaa aab aac aad aae aah aal aas aau ab- aba abb abc abd abe abh abl abs abu ac- aca acb acc acd ace ach acl acs acu ad- ada adb adc add ade adh adl ads adu aea aeb aec aed aee aeh ael aes aeu aha ahb ahc ahd ahe ahh ahl ahs ahu al- ala alb alc ald ale alh all als alu as- asa asb asc asd ase ash asl ass asu au- aua aub auc aud aue auh aul aus b-u baa bab bac bad bae bah bal bas bau bba bbb bbc bbd bbe bbh bbl bbs bbu bca bcb bcc bcd bce bch bcl bcs bcu bda bdb bdc bdd bde bdh bdl bds bdu be- bea beb bec bed bee beh bel bes beu bha bhb bhc bhd bhe bhh bhl bhs bhu bla blb blc bld ble blh bll bls blu bsa bsb bsc bsd bse bsh bsl bss bsu bua bub buc bud bue buh bul bus buu c-- caa cab cac cad cae cah cal cas cau cba cbb cbc cbd cbe cbh cbl cbs cbu cca ccb ccc ccd cce cch ccl ccs ccu cda cdb cdc cdd cde cdh cdl cds cdu ce- cea ceb cec ced cee ceh cel ces ceu ch- cha chb chc chd che chh chl chs chu cl- cla clb clc cld cle clh cll cls clu csa csb csc csd cse csh csl css csu cua cub cuc cud cue cuh cul cus cuu daa dab dac dad dae dah dal das dau dba dbb dbc dbd dbe dbh dbl dbs dbu dca dcb dcc dcd dce dcl dcs dcu dda ddb ddc ddd dde ddh ddl dds ddu de- dea deb dec ded dee deh del des deu dh- dha dhb dhc dhd dhe dhh dhl dhs dhu dl- dla dlb dlc dld dle dlh dll dls dlu dsa dsb dsc dsd dse dsh dsl dss dsu dua dub duc dud due duh dul dus eaa eab eac ead eae eah eal eas eau eba ebb ebc ebd ebe ebh ebl ebs ebu ec- eca ecb ecc ecd ece ech ecl ecs ecu ed- eda edb edc edd ede edh edl eds edu eea eeb eec eed eee eel ees eha ehb ehc ehd ehe ehh ehl ehs ehu ela elb elc eld ele elh ell els elu es- esa esb esc esd ese esh esl ess esu eu- eua eub euc eud eue eul eus haa hab hac had hae hah hal has hau hba hbb hbc hbd hbe hbh hbl hbs hbu hca hcb hcc hcd hce hch hcl hcs hda hdb hdc hdd hde hdh hdl hds hdu he- hea heb hec hed hee heh hel hes heu hha hhb hhc hhd hhe hhh hhl hhs hhu hla hlb hlc hld hle hlh hll hls hlu hsa hsb hsc hsd hse hsh hsl hss hsu hua hub huc hud hue huh hul hus huu la- laa lab lac lad lae lah lal las lau lba lbb lbc lbd lbe lbh lbl lbs lbu lca lcb lcc lcd lce lch lcl lcs lcu lda ldb ldc ldd lde ldh ldl lds ldu lea leb lec led lee leh lel les leu lha lhb lhc lhd lhh lhs lhu lla llb llc lld lle lll lls llu lsa lsb lsc lsd lse lsh lsl lss lsu lua lub luc lud lue luh lul lus luu saa sab sac sad sae sah sal sas sau sba sbb sbc sbd sbe sbh sbl sbs sbu sca scb scc scd sce sch scl scs scu sda sdb sdc sdd sde sdh sdl sds sdu se- sea seb sec sed see seh sel ses seu sh- sha shb shc shd she shh shl shs shu sla slb slc sld sle slh sll sls slu ss- ssa ssb ssc ssd sse ssh ssl sss ssu sua sub suc sud sue suh sul sus suu ua- uaa uab uac uad uae uah ual uas uau uba ubb ubc ube ubh ubl ubs ubu uca ucb ucc ucd uce uch ucl ucs ucu uda udb udc udd ude udl uds udu uea ueb uec ued uee ueh uel ues uha uhb uhc uhd uhe uhh uhl uhs uhu ula ulb ulc uld ule ull uls ulu usa usb usc usd use ush usl uss usu uua uuc uue uus uuu