b-u bbb bbc bbe bbh bbk bbn bbu bcb bcc bce bch bck bcn bcu be- beb bec bee beh bek ben beu bhb bhc bhe bhh bhk bhu bkb bkc bke bkk bkn bnb bnc bne bnk bnn bnu bub buc bue buh buk bun buu c-- cbb cbc cbe cbh cbk cbn cbu ccb ccc cce cch cck ccn ccu ce- ceb cec cee ceh cek cen ceu ch- chb chc che chh chk chn chu ckb ckc ckh cn- cnb cnc cne cnh cnn cnu cub cuc cue cuh cuk cun cuu ebb ebc ebe ebh ebk ebn ebu ec- ecb ecc ece ech eck ecn ecu eeb eec eee eek een ehb ehc ehe ehh ehn ehu ekb ekc eke ekh eku en- enb enc ene enh enk enn enu eu- eub euc eue eun hbb hbc hbe hbh hbk hbn hbu hcb hcc hce hch hck hcn he- heb hec hee heh hek hen heu hhb hhc hhe hhh hhk hhn hhu hkb hkh hkk hkn hku hnb hnc hne hnh hnk hnn hnu hub huc hue huh huk hun huu kbb kbc kbe kbh kbk kbn kbu kcb kcc kce kch kck kcn kcu ke- keb kec kee keh kek ken khe khh khk khn khu kkb kkc kke kkh kkk kkn kku kn- knc kne knk knn knu kub kuc kue kuh kuk kun kuu nbb nbc nbe nbk nbn nbu ncb ncc nce nch nck ncn ncu ne- neb nec nee neh nek nen neu nhb nhc nhe nhh nhk nhn nhu nkc nke nkk nkn nku nnb nnc nne nnh nnk nnn nnu nub nuc nue nuh nuk nun nuu ubb ubc ube ubh ubk ubn ubu ucb ucc uce uch uck ucn ucu ueb uec uee ueh uen uhb uhc uhe uhh uhu ukb ukc uke ukk ukn uku un- unb unc une unh unk unn unu uuc uue uun uuu