You are given a code:

def main_solution(x):
    return func_20(func_15('zwouxu'), func_5(x, 'hzf'))

Can you predict the output of `main_solution("ertsnpcim")` 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": "ertsnpcim"}, "ref_output": "\u00abhzz\u00bbf\u00abewr\u00bbt\u00abson\u00bbp\u00abcui\u00bbm\u00abx\u00bb\u00abu\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('zwouxu'), func_5(x, 'hzf'))", "funcname": "main_solution"}
rule