b-u bbb bbc bbe bbg bbk bbt bbu bcb bcc bce bcg bck bct bcu be- beb bec bee beg bek bet beu bgb bgc bge bgg bgk bgt bgu bkb bkc bke bkg bkk bkt btb btc bte btg btk btt btu bub buc bue bug buk but buu c-- cbb cbc cbe cbg cbk cbt cbu ccb ccc cce ccg cck cct ccu ce- ceb cec cee ceg cek cet ceu cgb cgc cge cgg cgt cgu ckb ckc ckt ctb ctc cte ctg ctk ctt ctu cub cuc cue cug cuk cut cuu ebb ebc ebe ebg ebk ebt ebu ec- ecb ecc ece ecg eck ect ecu eeb eec eee eeg eek eet egb egc ege egg egt egu ekb ekc eke ekg ekt eku etb etc ete etg etk ett etu eu- eub euc eue eug eut gbc gbe gbg gbk gbt gbu gcb gcc gce gcg gck gct gcu ge- geb gec gee geg gek get geu ggb ggc ggg ggt ggu gkb gkt gtb gtc gte gtg gtk gtt gtu gu- gub guc gue gug guk gut guu k-t kbb kbc kbe kbk kbu kcb kcc kce kcg kck kct kcu ke- keb kec kee keg kek ket kgb kgc kgu kkb kkc kke kkk kkt kku ktb ktc kte ktg ktk ktt ktu kub kuc kue kug kuk kut kuu tbb tbc tbe tbg tbk tbt tbu tcb tcc tce tcg tck tct tcu te- teb tec tee teg tek tet teu tgb tgc tge tgg tgk tgt tgu tkb tkc tke tkg tkk tkt ttb ttc tte ttg ttk ttt ttu tub tuc tue tug tuk tut tuu ubb ubc ube ubg ubk ubt ubu ucb ucc uce ucg uck uct ucu ueb uec uee ueg uet ugb ugc uge ugg ugk ugt ugu ukb ukc uke ukk uku utb utc ute utk utt utu uuc uue uug uut uuu