You are given a code:

def main_solution(x):
    return func_20(func_15('kue'), func_1('yvua', 4))

Can you predict the output of `main_solution("dswqpnac")` 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": "dswqpnac"}, "ref_output": "\u00abykv\u00bbu\u00abauy\u00bbv\u00abuea\u00bbyvuayvua", "ref_code": "def main_solution(x):\n    return func_20(func_15('kue'), func_1('yvua', 4))", "funcname": "main_solution"}
rule