Write a Python function named backwards that takes two str parameters: an input filename and an output filename. The function shall open the input file, read its contents, and create the output file with the letters of each line in reverse order. Notes: The newline character ('\n') is not shifted to the beginning of the line. The str type does not have a method named reverse; list does, but do not use it here. You do not have to provide comments for this code.