You are given a code:

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

Can you predict the output of `main_solution("ysninjkidf")` 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": "ysninjkidf"}, "ref_output": "o|f|o|h|t|h|x|p", "ref_code": "def main_solution(x):\n    return func_13(func_5('thxp', 'ofoh'), '|')", "funcname": "main_solution"}
rule