You are given a code:

def main_solution(x):
    return func_20(('qgd' + x), func_5(x, 'myqc'))

Can you predict the output of `main_solution("zxxxmyg")` 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": "zxxxmyg"}, "ref_output": "qmgydqzcxzxxxxmxymgyg", "ref_code": "def main_solution(x):\n    return func_20(('qgd' + x), func_5(x, 'myqc'))", "funcname": "main_solution"}
rule