You are given a code:

def main_solution(x):
    return func_20(('kgxr' + x), func_15(x))

Can you predict the output of `main_solution("dwutotikr")` 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": "dwutotikr"}, "ref_output": "k\u00abgdx\u00bbr\u00abdww\u00bbu\u00abtuo\u00bbt\u00abitk\u00bbr\u00abo\u00bb\u00abt\u00bb\u00abi\u00bb\u00abk\u00bb\u00abr\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('kgxr' + x), func_15(x))", "funcname": "main_solution"}
rule