You are given a code:

def main_solution(x):
    return (('dvuaj' + x) + func_4('zhycg'))

Can you predict the output of `main_solution("iwudebada")` 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": "iwudebada"}, "ref_output": "dvuajiwudebadazhycg", "ref_code": "def main_solution(x):\n    return (('dvuaj' + x) + func_4('zhycg'))", "funcname": "main_solution"}
rule