b-u bbb bbc bbd bbh bbk bbu bby bcb bcc bcd bch bck bcu bcy bdb bdc bdd bdh bdk bdu bdy bhb bhc bhd bhh bhk bhu bkb bkc bkk bub buc bud buh buk buu buy by- byc byd byh byk byu c-- cbb cbc cbd cbh cbk cbu cby ccb ccc ccd cch cck ccu cdb cdc cdd cdh cdk cdu cdy ch- chb chc chd chh chk chu chy ckb ckc ckd ckh cky cub cuc cud cuh cuk cuu cuy cyb cyc cyd cyk dbb dbc dbd dbh dbk dbu dby dcb dcc dcd dck dcu ddb ddc ddd ddh ddk ddu ddy dh- dhb dhc dhd dhh dhk dhu dkb dkc dkk dku dub duc dud duh duk duy dy- dyb dyc dyd dyk dyu dyy hbb hbc hbd hbh hbk hbu hby hcb hcc hcd hch hck hcy hdb hdc hdd hdh hdk hdu hdy hhb hhc hhd hhh hhk hhu hhy hkb hkd hkh hkk hku hub huc hud huh huk huu huy hy- hyb hyc hyd hyh hyy kbb kbc kbd kbh kbk kbu kcb kcc kcd kch kck kcu kdb kdc kdh kdk kdu kdy khh khk khu kkb kkc kkh kkk kku kky kub kuc kud kuh kuk kuu kuy kyc kyd kyu ubb ubc ubh ubk ubu uby ucb ucc ucd uch uck ucu udb udc udd udk udu uhb uhc uhd uhh uhu uhy ukb ukc ukk uku uuc uuu uyc uyu ybc yby ycc ycd ych ycu ycy ydy yhc yhu ykk yud yuh yuk yuu yuy yyb yyc yyu yyy