You are given a code:

def main_solution(x):
    return func_5(func_9('phzze'), 'kts')

Can you predict the output of `main_solution("rmyh")` 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": "rmyh"}, "ref_output": "ktsphzzeezzhp", "ref_code": "def main_solution(x):\n    return func_5(func_9('phzze'), 'kts')", "funcname": "main_solution"}
rule