You are given a code:

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

Can you predict the output of `main_solution("ezgpajsau")` 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": "ezgpajsau"}, "ref_output": "lyiyyiyle-z-g-p-a-j-s-a-u", "ref_code": "def main_solution(x):\n    return (func_9('lyiy') + func_13(x, '-'))", "funcname": "main_solution"}
rule