You are given a code:

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

Can you predict the output of `main_solution("xronk")` 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": "xronk"}, "ref_output": "c|r|o|y|x|r|o|n|k", "ref_code": "def main_solution(x):\n    return func_13(func_5(x, 'croy'), '|')", "funcname": "main_solution"}
rule