You are given a code:

def main_solution(x):
    return (func_20(x, x) + func_5('xtvvdy', 'qj'))

Can you predict the output of `main_solution("wxibpwhqp")` 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": "wxibpwhqp"}, "ref_output": "wwxxiibbppwwhhqqppqjxtvvdy", "ref_code": "def main_solution(x):\n    return (func_20(x, x) + func_5('xtvvdy', 'qj'))", "funcname": "main_solution"}
rule