-th bbb bbe bbh bbi bbk bbl bbt bbx be- beb bee beh bei bek bel bet bex bhb bhe bhh bhi bhk bhl bht bhx bi- bib bie bih bii bik bil bit bix bkb bke bkk bkl bkt bkx blb ble blh bli blk bll blt blx btb bte bth bti btk btl btt btx bxb bxi bxl bxx ebb ebe ebh ebi ebk ebl ebt ebx eeb eee eek eel eet eex ehb ehe ehh ehi ehl eht eib eie eii eik eil eit eix ekb eke ekh eki ekl ekt elb ele elh eli elk ell elt elx etb ete eth eti etk etl ett etx ex- exe exh exi exl ext exx h-i hbb hbe hbh hbi hbk hbl hbt hbx he- heb hee heh hei hek hel het hex hhb hhe hhh hhi hhk hhl hht hib hie hih hii hik hil hit hix hkb hkh hki hkk hkl hkt hlb hle hlh hli hll hlt hlx htb hte hth hti htk htl htt htx hxl ibb ibe ibh ibi ibk ibl ibt ibx ie- iee iei iek iel iet iex ihb ihe ihh ihi ihk ihl iht iib iie iih iii iil iit iix ikb ike iki ikk ikl ikt ikx il- ilb ile ilh ili ilk ill ilt ilx itb ite ith iti itk itl itt itx ixe ixi ixl k-t kbb kbe kbh kbi kbk kbl kbx ke- keb kee keh kei kek kel ket kex khe khh khi khk kib kie kih kii kik kil kit kix kkb kke kkh kki kkk kkl kkt kl- klb klh kli klt klx ktb kte kth ktk ktl ktt kxl lbb lbe lbh lbi lbk lbl lbt lbx leb lee leh lei lek lel let lex lhb lhh lhi lhk lht lhx lib lie lih lii lik lil lit lix lkb lkh lkl lkt llb lle lli llk lll llt ltb lte lth lti ltk ltl ltt ltx lxi lxx t-x tbb tbe tbh tbi tbk tbl tbt te- teb tee teh tei tek tel tet tex th- thb the thh thi thk thl tht thx tib tie tih tii tik til tit tix tkb tke tkk tkl tkt tle tlh tli tlk tll tlt tlx ttb tte tth tti ttk ttl ttt ttx txe txi txk txl txt xbe xbl xbx xee xel xet xex xht xie xii xit xix xkb xke xkl xlb xli xlt xti xtx xxi xxl xxx