a-a aaa aad aae aah aax ad- ada add ade adh adx aea aed aee aeh aex aha ahd ahe ahh ahx ax- axa axe axh axx daa dad dae dah dax dda ddd dde ddh ddx de- dea ded dee deh dex dh- dha dhd dhe dhh dxd dxx eaa ead eae eah eax ed- eda edd ede edh edx eea eed eee eex eha ehd ehe ehh ex- exa exd exe exh exx haa had hae hah hax hda hdd hde hdh hdx he- hea hed hee heh hex hha hhd hhe hhh hxd xaa xad xda xde xdh xed xee xex xhd xxx