a-a aaa aad aae aak aap ad- ada add ade adk adp aea aed aee aek aep aka akd ake akk akp ap- apa apd ape apk app daa dad dae dak dap dda ddd dde ddk ddp de- dea ded dee dek dep dka dke dkk dkp dpa dpd dpe dpk dpp eaa ead eae eak eap ed- eda edd ede edk edp eea eed eee eek eep eka ekd eke ekp ep- epa epd epe epp ka- kaa kad kae kak kap kda kde kdk kdp ke- kea ked kee kek kep kke kkk kkp kpa kpd kpe kpk kpp p-p paa pad pae pak pap pda pdd pde pdk pdp pea ped pee pek pep pka pkd pke pkp ppa ppd ppe ppk ppp