ddd ddi ddk ddn dds di- did dii dik din dis dki dkk dks dnd dni dnk dnn dns dsd dsi dsk dsn dss i-d idd idi idk idn ids iid iii iin iis iki ikk iks in- ind ini ink inn ins is- isd isi isk isn iss kdk kds kid kii kik kin kis kki kkk kkn kks kn- knd kni knk knn ksd ksi ksk ksn kss n-i ndd ndi ndk ndn nds nid nii nik nin nis nki nkk nkn nks nni nnk nnn nns nsd nsi nsk nsn nss sdd sdi sdk sdn sds sid sii sik sin sis sk- skd ski skk sks snd sni snk snn sns ss- ssd ssi ssk ssn sss