You are given a code:

def main_solution(x):
    return func_13(func_20('wvwfya', 'zdgjt'), '|')

Can you predict the output of `main_solution("jhgv")` 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": "jhgv"}, "ref_output": "w|z|v|d|w|g|f|j|y|t|a", "ref_code": "def main_solution(x):\n    return func_13(func_20('wvwfya', 'zdgjt'), '|')", "funcname": "main_solution"}
rule