# File hexja, line 1402
def inputUnknown(uio)
  show = Show.new
  uio.each_byte{|byte|
    if byte <= 0x1f
      show.nonLetter([byte], byte + $CHAR_AT)
    elsif byte == 0x7f
      show.nonLetter([byte], $CHAR_QUESTION)
    elsif byte < 0x7f
      show.letter([byte], byte, 1)
    else
      show.nonLetter([byte], $CHAR_PERIOD)
    end
  }
  show.flush
end