Write a complete program that will correctly decode a set of characters into a valid message. Your program should read a given file of a simple coded set of characters and print the exact message that the characters contain. The code key for this simple coding is a one-for-one character substitution based upon a single arithmetic manipulation of the printable portion of the ASCII character set.
Input and Output Specification
For example, with the input file that contains
your program should print the message
Your program should accept all sets of characters that use the same encoding scheme and should print the actual message of each set of characters.
Output for Sample Input
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