You are given a code:

def main_solution(x):
    return func_13(func_20('xryy', x), '-')

Can you predict the output of `main_solution("xuzldmepy")` 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": "xuzldmepy"}, "ref_output": "x-x-r-u-y-z-y-l-d-m-e-p-y", "ref_code": "def main_solution(x):\n    return func_13(func_20('xryy', x), '-')", "funcname": "main_solution"}
rule