You are given a code:

def main_solution(x):
    return (func_17(x) + func_22('ingo'))

Can you predict the output of `main_solution("gxigrgj")` 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": "gxigrgj"}, "ref_output": "jgrgixgingo", "ref_code": "def main_solution(x):\n    return (func_17(x) + func_22('ingo'))", "funcname": "main_solution"}
rule