ddd dde ddi ddn ddp de- ded dee dei den dep dev di- did die dii din dip div dnd dne dni dnn dnp dpd dpe dpi dpn dpp dpv dvd dve dvi dvn dvp ed- edd ede edi edn edp eed eee een eep eev eid eie eii ein eip eiv en- end ene eni enn enp env ep- epd epe epi epn epp evd eve evi evn evp evv i-d i-v idd ide idi idn idp idv ie- ied iee iei ien iep iev iid iie iii iin iip in- ind ine ini inn inp inv ipd ipe ipi ipn ipp ipv ivd ive ivi ivp ivv n-i ndd nde ndi ndn ndp ndv ne- ned nee nei nen nep nev nid nie nii nin nip niv nne nni nnn nnp nnv npd npe npi npn npp npv nvd nve nvi nvn nvp nvv p-p pdd pde pdi pdn pdp pdv ped pee pei pen pep pev pid pie pii pin pip piv pn- pnd pne pni pnn pnp pnv ppd ppe ppi ppn ppp ppv pvd pve pvi pvn pvp pvv v-e vdd vde vdi vdp vdv ved vee vei ven vep vi- vid vie vii vin vip viv vn- vnd vni vnp vnv vpd vpe vpi vpn vpp vvi vvv