You are given a code:

def main_solution(x):
    return func_13(func_9('pshejp'), '-')

Can you predict the output of `main_solution("rdiyqhikl")` 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": "rdiyqhikl"}, "ref_output": "p-s-h-e-j-p-p-j-e-h-s-p", "ref_code": "def main_solution(x):\n    return func_13(func_9('pshejp'), '-')", "funcname": "main_solution"}
rule