You are given a code:

def main_solution(x):
    return (func_13('pvyli', '-') + ('loqvyt' + 'adetu'))

Can you predict the output of `main_solution("cmklzpvmxx")` 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": "cmklzpvmxx"}, "ref_output": "p-v-y-l-iloqvytadetu", "ref_code": "def main_solution(x):\n    return (func_13('pvyli', '-') + ('loqvyt' + 'adetu'))", "funcname": "main_solution"}
rule