You are given a code:

def main_solution(x):
    return func_13(func_5(x, 'ptty'), '|')

Can you predict the output of `main_solution("jbkkdlivf")` 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": "jbkkdlivf"}, "ref_output": "p|t|t|y|j|b|k|k|d|l|i|v|f", "ref_code": "def main_solution(x):\n    return func_13(func_5(x, 'ptty'), '|')", "funcname": "main_solution"}
rule