Write a program that will print arbitrary input in a sensible way. As a minimum, it should print non-graphic characters in octal or hexadecimal according to local custom, and break long text lines.
Print each character that isprint accepts (graphic characters and the blank) as it is, and every other character except newline as \x and two lower-case hexadecimal digits, so a tab is \x09. Keep output lines to at most 40 characters: start a new line before a character whose printed form wouldn't fit. Copy newlines, and add none at the end.
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