You are given a code:

def main_solution(x):
    return func_3('doib')

Can you predict the output of `main_solution("ffeoeq")` 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": "ffeoeq"}, "ref_output": "bdio", "ref_code": "def main_solution(x):\n    return func_3('doib')", "funcname": "main_solution"}
rule