You are given a code:

def main_solution(x):
    return func_20(func_23(x, 3), func_15('mqinsg'))

Can you predict the output of `main_solution("wlqmmihf")` 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": "wlqmmihf"}, "ref_output": "w\u00ablmq\u00bbm\u00abmqi\u00bbh\u00abfi1\u00bb\u00abn\u00bb\u00abs\u00bb\u00abg\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_23(x, 3), func_15('mqinsg'))", "funcname": "main_solution"}
rule