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    1. text = "Hello World!"
    2. text = ''.join([chr((ord(character) - 65 + 13) % 26 + 65) if 65 <= ord(character) <= 90 else character for character in text])
    3. text = ''.join([chr((ord(character) - 97 + 13) % 26 + 97) if 97 <= ord(character) <= 122 else character for character in text])
    4. print(text)
    5.