You are given a code:

def main_solution(x):
    return func_20(func_15(x), (x).swapcase())

Can you predict the output of `main_solution("pnsqcemnx")` 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": "pnsqcemnx"}, "ref_output": "\u00abPpN\u00bbS\u00abQnC\u00bbE\u00abMsN\u00bbX\u00abq\u00bb\u00abc\u00bb\u00abe\u00bb\u00abm\u00bb\u00abn\u00bb\u00abx\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), (x).swapcase())", "funcname": "main_solution"}
rule