You are given a code:

def main_solution(x):
    return func_5(func_22('wxy'), 'fo')

Can you predict the output of `main_solution("kigra")` 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": "kigra"}, "ref_output": "fowx", "ref_code": "def main_solution(x):\n    return func_5(func_22('wxy'), 'fo')", "funcname": "main_solution"}
rule