You are given a code:

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

Can you predict the output of `main_solution("gelbwpbhwf")` 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": "gelbwpbhwf"}, "ref_output": "jg||oe||al|b|w|p|b|h|w|f", "ref_code": "def main_solution(x):\n    return func_20(func_13('joa', '|'), func_13(x, '|'))", "funcname": "main_solution"}
rule