You are given a code:

def main_solution(x):
    return func_20(func_15('sna'), func_5(x, 'golr'))

Can you predict the output of `main_solution("mucxilqcgk")` 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": "mucxilqcgk"}, "ref_output": "\u00abgso\u00bbl\u00abrnm\u00bbu\u00abcax\u00bbilqcgk", "ref_code": "def main_solution(x):\n    return func_20(func_15('sna'), func_5(x, 'golr'))", "funcname": "main_solution"}
rule