You are given a code:

def main_solution(x):
    return (func_3('cqgha') + func_5('uqxr', 'rjv'))

Can you predict the output of `main_solution("xismrf")` 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": "xismrf"}, "ref_output": "acghqrjvuqxr", "ref_code": "def main_solution(x):\n    return (func_3('cqgha') + func_5('uqxr', 'rjv'))", "funcname": "main_solution"}
rule