You are given a code:

def main_solution(x):
    return func_20(func_15('jygo'), func_20('mkw', x))

Can you predict the output of `main_solution("udrmatgqx")` 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": "udrmatgqx"}, "ref_output": "\u00abmju\u00bbk\u00abdyw\u00bbr\u00abmga\u00bbt\u00abgoq\u00bbx", "ref_code": "def main_solution(x):\n    return func_20(func_15('jygo'), func_20('mkw', x))", "funcname": "main_solution"}
rule