You are given a code:

def main_solution(x):
    return func_13(('zwhhh' + 'svjh'), '-')

Can you predict the output of `main_solution("cedmvbc")` 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": "cedmvbc"}, "ref_output": "z-w-h-h-h-s-v-j-h", "ref_code": "def main_solution(x):\n    return func_13(('zwhhh' + 'svjh'), '-')", "funcname": "main_solution"}
rule