You are given a code:

def main_solution(x):
    return func_5('hpf', 'ynmt')

Can you predict the output of `main_solution("kevce")` 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": "kevce"}, "ref_output": "ynmthpf", "ref_code": "def main_solution(x):\n    return func_5('hpf', 'ynmt')", "funcname": "main_solution"}
rule