You are given a code:

def main_solution(x):
    return func_20(func_13('vqdwm', '|'), func_15(x))

Can you predict the output of `main_solution("eqjpnicqz")` 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": "eqjpnicqz"}, "ref_output": "v\u00ab|eq\u00bb|\u00abdq|\u00bbw\u00ab|jm\u00bb\u00abp\u00bb\u00abn\u00bb\u00abi\u00bb\u00abc\u00bb\u00abq\u00bb\u00abz\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_13('vqdwm', '|'), func_15(x))", "funcname": "main_solution"}
rule