You are given a code:

def main_solution(x):
    return func_5(func_20('pasedy', x), 'uux')

Can you predict the output of `main_solution("rshk")` 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": "rshk"}, "ref_output": "uuxprasshekdy", "ref_code": "def main_solution(x):\n    return func_5(func_20('pasedy', x), 'uux')", "funcname": "main_solution"}
rule