def encode(text): result = "" for char in text.lower(): if char == "a": result += "4" elif char == "e": result += "3" elif char == "i": result += "1" elif char == "o": result += "0" elif char == "s": result += "5" else: # If the character isn't in our rules, keep it as is result += char return result # Get user input user_input = input("Enter a message to encode: ") encoded_message = encode(user_input) print("Encoded message: " + encoded_message) Use code with caution. Key Tips for CodeHS Success