-th b-u bbb bbc bbe bbh bbt bbu bcb bcc bce bch bct bcu be- beb bec bee beh bet beu bhb bhc bhe bhh bht bhu btb btc bte bth btt btu bub buc bue buh but buu c-- cbb cbc cbe cbh cbt cbu ccb ccc cce cch cct ccu ce- ceb cec cee ceh cet ceu ch- chb chc che chh cht chu ctb ctc cte cth ctt ctu cub cuc cue cuh cut cuu ebb ebc ebe ebh ebt ebu ec- ecb ecc ece ech ect ecu eeb eec eee eet ehb ehc ehe ehh eht ehu etb etc ete eth ett etu eu- eub euc eue eut hbb hbc hbe hbh hbt hbu hcb hcc hce hch hct he- heb hec hee heh het heu hhb hhc hhe hhh hht hhu htb htc hte hth htt hub huc hue huh hut huu tbb tbc tbe tbh tbt tbu tcb tcc tce tch tct tcu te- teb tec tee teh tet teu th- thb thc the thh tht thu ttb ttc tte tth ttt ttu tub tuc tue tuh tut tuu ubb ubc ube ubh ubt ubu ucb ucc uce uch uct ucu ueb uec uee ueh uet uhb uhc uhe uhh uht uhu utb utc ute uth utt utu uuc uue uut uuu