You are given a code:

def main_solution(x):
    return (func_20('oqhd', 'ihfvd') + func_13(x, '|'))

Can you predict the output of `main_solution("zzxoxmjue")` 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": "zzxoxmjue"}, "ref_output": "oiqhhfdvdz|z|x|o|x|m|j|u|e", "ref_code": "def main_solution(x):\n    return (func_20('oqhd', 'ihfvd') + func_13(x, '|'))", "funcname": "main_solution"}
rule