You are given a code:

def main_solution(x):
    return func_20(func_15('gfdxq'), func_5('zny', 'ylxz'))

Can you predict the output of `main_solution("wejkfphf")` 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": "wejkfphf"}, "ref_output": "\u00abygl\u00bbx\u00abzfz\u00bbn\u00abyd\u00bb\u00abx\u00bb\u00abq\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('gfdxq'), func_5('zny', 'ylxz'))", "funcname": "main_solution"}
rule