You are given a code:

def main_solution(x):
    return func_22(func_3('kwwm'))

Can you predict the output of `main_solution("swht")` 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": "swht"}, "ref_output": "kmww", "ref_code": "def main_solution(x):\n    return func_22(func_3('kwwm'))", "funcname": "main_solution"}
rule