You are given a code:

def main_solution(x):
    return (('haa' + 'nwhxaq') + func_20('nzf', 'wqi'))

Can you predict the output of `main_solution("ekznqzgd")` 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": "ekznqzgd"}, "ref_output": "haanwhxaqnwzqfi", "ref_code": "def main_solution(x):\n    return (('haa' + 'nwhxaq') + func_20('nzf', 'wqi'))", "funcname": "main_solution"}
rule