a-a a-i aaa aaf aai aak aan af- afa aff afi afk afn ai- aia aif aii aik ain aka aki akk akn an- ana anf ani ank ann faa faf fai fak fan ffa fff ffi ffk ffn fia fif fii fik fin fka fkf fki fkk fna fnf fni fnk fnn i-f ia- iaa iaf iai ian ifa iff ifi ifn iia iif iii iin ika ikf iki ikk in- ina inf ini ink inn ka- kaa kaf kai kak kan kfa kff kfi kia kif kii kik kin kki kkk kkn kn- kna knf kni knk knn n-i naa naf nai nak nan nfa nff nfi nfk nfn nia nif nii nik nin nka nkf nki nkk nkn nna nnf nni nnk nnn