You are given a code:

def main_solution(x):
    return func_13(func_5(x, 'ddht'), '-')

Can you predict the output of `main_solution("qvfdvcxoce")` 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": "qvfdvcxoce"}, "ref_output": "d-d-h-t-q-v-f-d-v-c-x-o-c-e", "ref_code": "def main_solution(x):\n    return func_13(func_5(x, 'ddht'), '-')", "funcname": "main_solution"}
rule