-th b-u bbb bbc bbe bbh bbl bbt bbu bcb bcc bce bch bcl bct bcu be- beb bec bee beh bel bet beu bhb bhc bhe bhh bhl bht bhu blb blc ble blh bll blt blu btb btc bte bth btl btt btu bub buc bue buh bul but buu c-- cbb cbc cbe cbh cbl cbt cbu ccb ccc cce cch ccl cct ccu ce- ceb cec cee ceh cel cet ceu ch- chb chc che chh chl cht chu cl- clb clc cle clh cll clt clu ctb ctc cte cth ctl ctt ctu cub cuc cue cuh cul cut cuu ebb ebc ebe ebh ebl ebt ebu ec- ecb ecc ece ech ecl ect ecu eeb eec eee eel eet ehb ehc ehe ehh ehl eht ehu elb elc ele elh ell elt elu etb etc ete eth etl ett etu eu- eub euc eue eul eut hbb hbc hbe hbh hbl hbt hbu hcb hcc hce hch hcl hct he- heb hec hee heh hel het heu hhb hhc hhe hhh hhl hht hhu hlb hlc hle hlh hll hlt hlu htb htc hte hth htl htt hub huc hue huh hul hut huu lbb lbc lbe lbh lbl lbt lbu lcb lcc lce lch lcl lct lcu leb lec lee leh lel let leu lhb lhc lhh lht lhu llb llc lle lll llt llu ltb ltc lte lth ltl ltt ltu lub luc lue luh lul lut luu tbb tbc tbe tbh tbl tbt tbu tcb tcc tce tch tcl tct tcu te- teb tec tee teh tel tet teu th- thb thc the thh thl tht thu tlc tle tlh tll tlt tlu ttb ttc tte tth ttl ttt ttu tub tuc tue tuh tul tut tuu ubb ubc ube ubh ubl ubt ubu ucb ucc uce uch ucl uct ucu ueb uec uee ueh uel uet uhb uhc uhe uhh uhl uht uhu ulb ulc ule ull ult ulu utb utc ute uth utl utt utu uuc uue uut uuu