You are given a code:

def main_solution(x):
    return func_17(func_20('fsohk', 'jbft'))

Can you predict the output of `main_solution("bfuskimrhh")` 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": "bfuskimrhh"}, "ref_output": "kthfobsjf", "ref_code": "def main_solution(x):\n    return func_17(func_20('fsohk', 'jbft'))", "funcname": "main_solution"}
rule