You are given a code:

def main_solution(x):
    return (('ijvk' + x) + ('nrg' + 'gfjawh'))

Can you predict the output of `main_solution("wafupu")` without writing any code? Please reason and put your final answer in the following json format: {"output": <your output>}, where <your output> should be the final string.
user
{"ref_input": {"x": "wafupu"}, "ref_output": "ijvkwafupunrggfjawh", "ref_code": "def main_solution(x):\n    return (('ijvk' + x) + ('nrg' + 'gfjawh'))", "funcname": "main_solution"}
rule