-up ddd dde ddi ddp ddu de- ded dee dei dep deu di- did die dii dip diu dpd dpe dpi dpp dpu dud due dui dup ed- edd ede edi edp edu eed eee eep eid eie eii eip eiu ep- epd epe epi epp epu eu- eud eue eui eup i-d idd ide idi idp idu ie- ied iee iei iep iid iie iii iip iiu ipd ipe ipi ipp ipu iu- iud iue iui iup p-p pdd pde pdi pdp pdu ped pee pei pep peu pid pie pii pip piu ppd ppe ppi ppp ppu pud pue pui pup puu udd ude udi udp udu ued uee uei uep uid uie uii uip uiu up- upd upe upi upp upu uue uuu