You are given a code:

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

Can you predict the output of `main_solution("jrfccjjpzz")` 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": "jrfccjjpzz"}, "ref_output": "j\u00ab|jr\u00bb|\u00abfr|\u00bbc\u00ab|fc\u00bb|\u00abjc|\u00bbj\u00ab|cp\u00bb|\u00abzj|\u00bbz\u00abj\u00bb\u00abp\u00bb\u00abz\u00bb\u00abz\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_13(x, '|'), func_15(x))", "funcname": "main_solution"}
rule