You are given a code:

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

Can you predict the output of `main_solution("iprsqbd")` 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": "iprsqbd"}, "ref_output": "\u00abij|\u00bbp\u00ab|kr\u00bb|\u00absn|\u00bbq\u00ab|vb\u00bb|\u00abdf\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('jknvf'), func_13(x, '|'))", "funcname": "main_solution"}
rule