You are given a code:

def main_solution(x):
    return func_22(func_5('xfq', 'qo'))

Can you predict the output of `main_solution("yymdkgmx")` 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": "yymdkgmx"}, "ref_output": "qoxf", "ref_code": "def main_solution(x):\n    return func_22(func_5('xfq', 'qo'))", "funcname": "main_solution"}
rule