-up b-p b-u bbb bbc bbe bbp bbt bbu bcb bcc bce bcp bct bcu be- beb bec bee bep bet beu bpb bpc bpe bpp bpt bpu btb btc bte btp btt btu bub buc bue bup but buu c-- cbb cbc cbe cbp cbt cbu ccb ccc cce ccp cct ccu ce- ceb cec cee cep cet ceu cpb cpc cpe cpp cpt cpu ctb ctc cte ctp ctt ctu cub cuc cue cup cut cuu ebb ebc ebe ebp ebt ebu ec- ecb ecc ece ect ecu eeb eec eee eep eet ep- epb epc epe epp ept epu etb etc ete etp ett etu eu- eub euc eue eup eut p-p pbb pbc pbe pbp pbt pbu pcb pcc pce pcp pct pcu peb pec pee pep pet peu ppb ppc ppe ppp ppt ppu pt- ptb ptc pte ptp ptt ptu pub puc pue pup put puu tbb tbc tbe tbp tbt tbu tcb tcc tce tcp tct tcu te- teb tec tee tep tet teu tpb tpc tpe tpp tpt tpu ttb ttc tte ttp ttt ttu tub tuc tue tup tut tuu ubb ubc ube ubp ubt ubu ucb ucc uce ucp uct ucu ueb uec uee uep uet up- upb upc upe upp upt upu utb utc ute utp utt utu uuc uue uut uuu