You are given a code:

def main_solution(x):
    return func_13(('ztpbgp' + x), '|')

Can you predict the output of `main_solution("kaofixcblx")` 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": "kaofixcblx"}, "ref_output": "z|t|p|b|g|p|k|a|o|f|i|x|c|b|l|x", "ref_code": "def main_solution(x):\n    return func_13(('ztpbgp' + x), '|')", "funcname": "main_solution"}
rule