codepoint -> encoding in UTF-8

    U+022F    -> C8 AF  
    U+042F    -> D0 AF  
    U+062F    -> D8 AF

Remember, UTF-8 is self-synchronising: when you pick up at a random point within a stream, there is no ambiguity as to whether you are in the middle of a sequence or not. Valid lower codepoints appearing in the encoding of higher codepoints would violate this property.