-er -ey b-u bbb bbc bbd bbe bbh bbk bbr bbs bbu bby bcb bcc bcd bce bch bck bcr bcs bcu bcy bdb bdc bdd bde bdh bdk bdr bds bdu bdy be- beb bec bed bee beh bek ber bes beu bey bhb bhc bhd bhe bhh bhk bhr bhs bhu bkb bkc bke bkk bkr bks brb brd bre brh brk brr brs bru bry bsb bsc bsd bse bsh bsk bsr bss bsu bsy bub buc bud bue buh buk bur bus buu buy by- byc byd bye byh byk byr bys byu c-- cbb cbc cbd cbe cbh cbk cbr cbs cbu cby ccb ccc ccd cce cch cck ccr ccs ccu cdb cdc cdd cde cdh cdk cdr cds cdu cdy ce- ceb cec ced cee ceh cek cer ces ceu cey ch- chb chc chd che chh chk chr chs chu chy ckb ckc ckd ckh cks cky crb crc crd cre crh crk crr crs cru cry csb csc csd cse csh csk csr css csu csy cub cuc cud cue cuh cuk cur cus cuu cuy cyb cyc cyd cye cyk cyr cys dbb dbc dbd dbe dbh dbk dbr dbs dbu dby dcb dcc dcd dce dck dcr dcs dcu ddb ddc ddd dde ddh ddk ddr dds ddu ddy de- deb dec ded dee deh dek der des deu dey dh- dhb dhc dhd dhe dhh dhk dhr dhs dhu dkb dkc dke dkk dkr dks dku drb drc drd dre drk drr drs dru dry dsb dsc dsd dse dsh dsk dsr dss dsu dsy dub duc dud due duh duk dur dus duy dy- dyb dyc dyd dye dyk dyr dys dyu dyy ebb ebc ebd ebe ebh ebk ebr ebs ebu eby ec- ecb ecc ecd ece ech eck ecr ecs ecu ed- edb edc edd ede edh edk edr eds edu edy eeb eec eed eee eek eer ees eey ehb ehc ehd ehe ehh ehr ehs ehu ekb ekc ekd eke ekh ekr eks eku eky erb erc erd ere erh erk err ers eru ery es- esb esc esd ese esh esk esr ess esu esy eu- eub euc eud eue eur eus eyc eyd eye eyr eys hbb hbc hbd hbe hbh hbk hbr hbs hbu hby hcb hcc hcd hce hch hck hcr hcs hcy hdb hdc hdd hde hdh hdk hdr hds hdu hdy he- heb hec hed hee heh hek her hes heu hey hhb hhc hhd hhe hhh hhk hhr hhs hhu hhy hkb hkd hkh hkk hkr hks hku hr- hrb hrc hrd hre hrh hrk hrr hrs hru hsb hsc hsd hse hsh hsk hsr hss hsu hsy hub huc hud hue huh huk hur hus huu huy hy- hyb hyc hyd hye hyh hyr hys hyy kbb kbc kbd kbe kbh kbk kbr kbs kbu kcb kcc kcd kce kch kck kcr kcs kcu kdb kdc kde kdh kdk kdr kds kdu kdy ke- keb kec ked kee keh kek ker kes key khe khh khk khr khs khu kkb kkc kke kkh kkk kkr kks kku kky krc krd krk krr krs kru kry ksb ksc ksd kse ksh ksk ksr kss ksu kub kuc kud kue kuh kuk kur kus kuu kuy kyc kyd kye kyr kys kyu rbb rbc rbd rbe rbh rbk rbr rbs rbu rcb rcc rcd rce rch rcr rcs rcu rdb rdc rdd rde rdh rdr rds rdu rdy re- reb rec red ree reh rek rer res reu rey rh- rhb rhc rhd rhe rhh rhr rhs rhu rkb rkc rke rkk rks rku rky rrb rrc rrd rrh rrk rrr rrs rru rsb rsc rsd rse rsh rsk rsr rss rsu rub ruc rud rue ruh ruk rur rus ruu ruy ry- ryc ryd rye ryk ryr rys ryu ryy sbb sbc sbd sbe sbh sbk sbr sbs sbu sby scb scc scd sce sch sck scr scs scu sdb sdc sdd sde sdh sdk sdr sds sdu sdy se- seb sec sed see seh sek ser ses seu sey sh- shb shc shd she shh shk shr shs shu shy sk- skb skc skd ske skh skk skr sks sku sky sr- srb src srd sre srh srk srr srs sry ss- ssb ssc ssd sse ssh ssk ssr sss ssu sub suc sud sue suh suk sur sus suu suy sy- syb syc syd sye syh syk syr sys syu ubb ubc ube ubh ubk ubr ubs ubu uby ucb ucc ucd uce uch uck ucr ucs ucu udb udc udd ude udk udr uds udu ueb uec ued uee ueh uer ues uey uhb uhc uhd uhe uhh uhr uhs uhu uhy ukb ukc uke ukk ukr uku ur- urb urc urd ure urk urr urs uru ury usb usc usd use ush usk usr uss usu uuc uue uur uus uuu uyc uys uyu ybc ybe ybr ybs yby ycc ycd yce ych ycs ycu ycy yde yds ydy yeb yec yed yee yeh yek yer yes yey yhc yhe yhs yhu ykk yrc yre yrs yru ysb ysc yse ysk ysr yss ysu ysy yud yue yuh yuk yur yus yuu yuy yyb yyc yye yys yyu yyy