You are given a code:

def main_solution(x):
    return func_20(('jkx' + x), func_13('hlgdq', '|'))

Can you predict the output of `main_solution("nvhz")` 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": "nvhz"}, "ref_output": "jhk|xln|vgh|zd|q", "ref_code": "def main_solution(x):\n    return func_20(('jkx' + x), func_13('hlgdq', '|'))", "funcname": "main_solution"}
rule