b-u bbb bbc bbd bbe bbh bbk bbl bbu bcb bcc bcd bce bch bck bcl bcu bdb bdc bdd bde bdh bdk bdl bdu be- beb bec bed bee beh bek bel beu bhb bhc bhd bhe bhh bhk bhl bhu bkb bkc bke bkk bkl blb blc bld ble blh blk bll blu bub buc bud bue buh buk bul buu c-- cbb cbc cbd cbe cbh cbk cbl cbu ccb ccc ccd cce cch cck ccl ccu cdb cdc cdd cde cdh cdk cdl cdu ce- ceb cec ced cee ceh cek cel ceu ch- chb chc chd che chh chk chl chu ckb ckc ckd ckh cl- clb clc cld cle clh clk cll clu cub cuc cud cue cuh cuk cul cuu dbb dbc dbd dbe dbh dbk dbl dbu dcb dcc dcd dce dck dcl dcu ddb ddc ddd dde ddh ddk ddl ddu de- deb dec ded dee deh dek del deu dh- dhb dhc dhd dhe dhh dhk dhl dhu dkb dkc dke dkk dkl dku dl- dlb dlc dld dle dlh dlk dll dlu dub duc dud due duh duk dul ebb ebc ebd ebe ebh ebk ebl ebu ec- ecb ecc ecd ece ech eck ecl ecu ed- edb edc edd ede edh edk edl edu eeb eec eed eee eek eel ehb ehc ehd ehe ehh ehl ehu ekb ekc ekd eke ekh ekl eku elb elc eld ele elh elk ell elu eu- eub euc eud eue eul hbb hbc hbd hbe hbh hbk hbl hbu hcb hcc hcd hce hch hck hcl hdb hdc hdd hde hdh hdk hdl hdu he- heb hec hed hee heh hek hel heu hhb hhc hhd hhe hhh hhk hhl hhu hkb hkd hkh hkk hkl hku hlb hlc hld hle hlh hll hlu hub huc hud hue huh huk hul huu kbb kbc kbd kbe kbh kbk kbl kbu kcb kcc kcd kce kch kck kcl kcu kdb kdc kde kdh kdk kdl kdu ke- keb kec ked kee keh kek kel khe khh khk khu kkb kkc kke kkh kkk kkl kku kl- klb klc kld klh klu kub kuc kud kue kuh kuk kul kuu lbb lbc lbd lbe lbh lbk lbl lbu lcb lcc lcd lce lch lck lcl lcu ldb ldc ldd lde ldh ldk ldl ldu leb lec led lee leh lek lel leu lhb lhc lhd lhh lhk lhu lkb lkh lkl llb llc lld lle llk lll llu lub luc lud lue luh luk lul luu ubb ubc ube ubh ubk ubl ubu ucb ucc ucd uce uch uck ucl ucu udb udc udd ude udk udl udu ueb uec ued uee ueh uel uhb uhc uhd uhe uhh uhl uhu ukb ukc uke ukk ukl uku ulb ulc uld ule ulk ull ulu uuc uue uuu