You are given a code:

def main_solution(x):
    return func_20((x + x), func_15('ywnmh'))

Can you predict the output of `main_solution("xcttilaqx")` 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": "xcttilaqx"}, "ref_output": "x\u00abcyt\u00bbt\u00abiwl\u00bba\u00abqnx\u00bbx\u00abcmt\u00bbt\u00abihl\u00bbaqx", "ref_code": "def main_solution(x):\n    return func_20((x + x), func_15('ywnmh'))", "funcname": "main_solution"}
rule