You are given a code:

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

Can you predict the output of `main_solution("fuudexq")` 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": "fuudexq"}, "ref_output": "f\u00abusu\u00bbd\u00abekx\u00bbq\u00abdyw\u00bbq\u00abcm\u00bb", "ref_code": "def main_solution(x):\n    return func_20((x + 'dwqc'), func_15('skym'))", "funcname": "main_solution"}
rule