You are given a code:

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

Can you predict the output of `main_solution("anqaxpan")` 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": "anqaxpan"}, "ref_output": "\u00abyax\u00bbs\u00absnh\u00bbf\u00abaqn\u00bbq\u00abaax\u00bbp\u00abaxn\u00bb\u00abp\u00bb\u00aba\u00bb\u00abn\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), ('yxsshf' + x))", "funcname": "main_solution"}
rule