-th b-u bbb bbc bbe bbh bbk bbt bbu bcb bcc bce bch bck bct bcu be- beb bec bee beh bek bet beu bhb bhc bhe bhh bhk bht bhu bkb bkc bke bkk bkt btb btc bte bth btk btt btu bub buc bue buh buk but buu c-- cbb cbc cbe cbh cbk cbt cbu ccb ccc cce cch cck cct ccu ce- ceb cec cee ceh cek cet ceu ch- chb chc che chh chk cht chu ckb ckc ckh ckt ctb ctc cte cth ctk ctt ctu cub cuc cue cuh cuk cut cuu ebb ebc ebe ebh ebk ebt ebu ec- ecb ecc ece ech eck ect ecu eeb eec eee eek eet ehb ehc ehe ehh eht ehu ekb ekc eke ekh ekt eku etb etc ete eth etk ett etu eu- eub euc eue eut hbb hbc hbe hbh hbk hbt hbu hcb hcc hce hch hck hct he- heb hec hee heh hek het heu hhb hhc hhe hhh hhk hht hhu hkb hkh hkk hkt hku htb htc hte hth htk htt hub huc hue huh huk hut huu k-t kbb kbc kbe kbh kbk kbu kcb kcc kce kch kck kct kcu ke- keb kec kee keh kek ket khe khh khk khu kkb kkc kke kkh kkk kkt kku ktb ktc kte kth ktk ktt ktu kub kuc kue kuh kuk kut kuu tbb tbc tbe tbh tbk tbt tbu tcb tcc tce tch tck tct tcu te- teb tec tee teh tek tet teu th- thb thc the thh thk tht thu tkb tkc tke tkk tkt ttb ttc tte tth ttk ttt ttu tub tuc tue tuh tuk tut tuu ubb ubc ube ubh ubk ubt ubu ucb ucc uce uch uck uct ucu ueb uec uee ueh uet uhb uhc uhe uhh uht uhu ukb ukc uke ukk uku utb utc ute uth utk utt utu uuc uue uut uuu