-ey -th bbb bbe bbh bbk bbt bbx bby be- beb bee beh bek bet bex bey bhb bhe bhh bhk bht bhx bkb bke bkk bkt bkx btb bte bth btk btt btx bty bxb bxx by- bye byh byk byt ebb ebe ebh ebk ebt ebx eby eeb eee eek eet eex eey ehb ehe ehh eht ekb eke ekh ekt eky etb ete eth etk ett etx ety ex- exe exh ext exx exy eye eyt hbb hbe hbh hbk hbt hbx hby he- heb hee heh hek het hex hey hhb hhe hhh hhk hht hhy hkb hkh hkk hkt htb hte hth htk htt htx hty hy- hyb hye hyh hyt hyy k-t kbb kbe kbh kbk kbx ke- keb kee keh kek ket kex key khe khh khk kkb kke kkh kkk kkt kky ktb kte kth ktk ktt kxy kye kyt kyx t-x tbb tbe tbh tbk tbt te- teb tee teh tek tet tex tey th- thb the thh thk tht thx thy tkb tke tkk tkt tky ttb tte tth ttk ttt ttx tty txe txk txt tye tyt xbe xbx xee xet xex xht xkb xke xtx xty xxx xxy xyy ybe yby yeb yee yeh yek yet yex yey yhe yht ykk yte yth ytk ytt yxe yxy yyb yye yyt yyy