You are given a code:

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

Can you predict the output of `main_solution("kilnqjz")` 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": "kilnqjz"}, "ref_output": "\u00abkx|\u00bbi\u00ab|hl\u00bb|\u00abni|\u00bbq|j|z", "ref_code": "def main_solution(x):\n    return func_20(func_15('xhi'), func_13(x, '|'))", "funcname": "main_solution"}
rule