You are given a code:

def main_solution(x):
    return func_20(func_9('mvwres'), func_15('axtzm'))

Can you predict the output of `main_solution("yqxya")` 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": "yqxya"}, "ref_output": "m\u00abvaw\u00bbr\u00abexs\u00bbs\u00abetr\u00bbw\u00abvzm\u00bb\u00abm\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_9('mvwres'), func_15('axtzm'))", "funcname": "main_solution"}
rule