You are given a code:

def main_solution(x):
    return func_13(func_15('zudax'), '-')

Can you predict the output of `main_solution("pjshrc")` 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": "pjshrc"}, "ref_output": "\u00ab-z-\u00bb-\u00ab-u-\u00bb-\u00ab-d-\u00bb-\u00ab-a-\u00bb-\u00ab-x-\u00bb", "ref_code": "def main_solution(x):\n    return func_13(func_15('zudax'), '-')", "funcname": "main_solution"}
rule