-th b-u bbb bbc bbe bbh bbk bbl bbt bbu bcb bcc bce bch bck bcl bct bcu be- beb bec bee beh bek bel bet beu bhb bhc bhe bhh bhk bhl bht bhu bkb bkc bke bkk bkl bkt blb blc ble blh blk bll blt blu btb btc bte bth btk btl btt btu bub buc bue buh buk bul but buu c-- cbb cbc cbe cbh cbk cbl cbt cbu ccb ccc cce cch cck ccl cct ccu ce- ceb cec cee ceh cek cel cet ceu ch- chb chc che chh chk chl cht chu ckb ckc ckh ckt cl- clb clc cle clh clk cll clt clu ctb ctc cte cth ctk ctl ctt ctu cub cuc cue cuh cuk cul cut cuu ebb ebc ebe ebh ebk ebl ebt ebu ec- ecb ecc ece ech eck ecl ect ecu eeb eec eee eek eel eet ehb ehc ehe ehh ehl eht ehu ekb ekc eke ekh ekl ekt eku elb elc ele elh elk ell elt elu etb etc ete eth etk etl ett etu eu- eub euc eue eul eut hbb hbc hbe hbh hbk hbl hbt hbu hcb hcc hce hch hck hcl hct he- heb hec hee heh hek hel het heu hhb hhc hhe hhh hhk hhl hht hhu hkb hkh hkk hkl hkt hku hlb hlc hle hlh hll hlt hlu htb htc hte hth htk htl htt hub huc hue huh huk hul hut huu k-t kbb kbc kbe kbh kbk kbl kbu kcb kcc kce kch kck kcl kct kcu ke- keb kec kee keh kek kel ket khe khh khk khu kkb kkc kke kkh kkk kkl kkt kku kl- klb klc klh klt klu ktb ktc kte kth ktk ktl ktt ktu kub kuc kue kuh kuk kul kut kuu lbb lbc lbe lbh lbk lbl lbt lbu lcb lcc lce lch lck lcl lct lcu leb lec lee leh lek lel let leu lhb lhc lhh lhk lht lhu lkb lkh lkl lkt llb llc lle llk lll llt llu ltb ltc lte lth ltk ltl ltt ltu lub luc lue luh luk lul lut luu tbb tbc tbe tbh tbk tbl tbt tbu tcb tcc tce tch tck tcl tct tcu te- teb tec tee teh tek tel tet teu th- thb thc the thh thk thl tht thu tkb tkc tke tkk tkl tkt tlc tle tlh tlk tll tlt tlu ttb ttc tte tth ttk ttl ttt ttu tub tuc tue tuh tuk tul tut tuu ubb ubc ube ubh ubk ubl ubt ubu ucb ucc uce uch uck ucl uct ucu ueb uec uee ueh uel uet uhb uhc uhe uhh uhl uht uhu ukb ukc uke ukk ukl uku ulb ulc ule ulk ull ult ulu utb utc ute uth utk utl utt utu uuc uue uut uuu