b-u bbb bbc bbd bbe bbh bbn bbu bcb bcc bcd bce bch bcn bcu bdb bdc bdd bde bdh bdu be- beb bec bed bee beh ben beu bhb bhc bhd bhe bhh bhu bnb bnc bnd bne bnn bnu bub buc bud bue buh bun buu c-- cbb cbc cbd cbe cbh cbn cbu ccb ccc ccd cce cch ccn ccu cdb cdc cdd cde cdh cdn cdu ce- ceb cec ced cee ceh cen ceu ch- chb chc chd che chh chn chu cn- cnb cnc cnd cne cnh cnn cnu cub cuc cud cue cuh cun cuu dbb dbc dbd dbe dbh dbn dbu dcb dcc dcd dce dcn dcu ddb ddc ddd dde ddh ddn ddu de- deb dec ded dee deh den deu dh- dhb dhc dhd dhe dhh dhu dnb dnc dnd dne dnh dnn dub duc dud due duh dun ebb ebc ebd ebe ebh ebn ebu ec- ecb ecc ecd ece ech ecn ecu ed- edb edc edd ede edh edn edu eeb eec eed eee een ehb ehc ehd ehe ehh ehn ehu en- enb enc end ene enh enn enu eu- eub euc eud eue eun hbb hbc hbd hbe hbh hbn hbu hcb hcc hcd hce hch hcn hdb hdc hdd hde hdh hdn hdu he- heb hec hed hee heh hen heu hhb hhc hhd hhe hhh hhn hhu hnb hnc hnd hne hnh hnn hnu hub huc hud hue huh hun huu nbb nbc nbd nbe nbn nbu ncb ncc ncd nce nch ncn ncu ndb ndc ndd nde ndh ndn ndu ne- neb nec ned nee neh nen neu nhb nhc nhd nhe nhh nhn nhu nnb nnc nne nnh nnn nnu nub nuc nud nue nuh nun nuu ubb ubc ube ubh ubn ubu ucb ucc ucd uce uch ucn ucu udb udc udd ude udn udu ueb uec ued uee ueh uen uhb uhc uhd uhe uhh uhu un- unb unc und une unh unn unu uuc uue uun uuu