b-u bbb bbc bbd bbe bbh bbu bcb bcc bcd bce bch bcu bdb bdc bdd bde bdh bdu be- beb bec bed bee beh beu bhb bhc bhd bhe bhh bhu bub buc bud bue buh buu c-- cbb cbc cbd cbe cbh cbu ccb ccc ccd cce cch ccu cdb cdc cdd cde cdh cdu ce- ceb cec ced cee ceh ceu ch- chb chc chd che chh chu cub cuc cud cue cuh cuu dbb dbc dbd dbe dbh dbu dcb dcc dcd dce dcu ddb ddc ddd dde ddh ddu de- deb dec ded dee deh deu dh- dhb dhc dhd dhe dhh dhu dub duc dud due duh ebb ebc ebd ebe ebh ebu ec- ecb ecc ecd ece ech ecu ed- edb edc edd ede edh edu eeb eec eed eee ehb ehc ehd ehe ehh ehu eu- eub euc eud eue hbb hbc hbd hbe hbh hbu hcb hcc hcd hce hch hdb hdc hdd hde hdh hdu he- heb hec hed hee heh heu hhb hhc hhd hhe hhh hhu hub huc hud hue huh huu ubb ubc ube ubh ubu ucb ucc ucd uce uch ucu udb udc udd ude udu ueb uec ued uee ueh uhb uhc uhd uhe uhh uhu uuc uue uuu