You are given a code:

def main_solution(x):
    return func_20(func_20('saixwe', x), func_15('rqru'))

Can you predict the output of `main_solution("ddamruu")` 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": "ddamruu"}, "ref_output": "s\u00abdra\u00bbd\u00abiqa\u00bbx\u00abmrw\u00bbr\u00abeuu\u00bbu", "ref_code": "def main_solution(x):\n    return func_20(func_20('saixwe', x), func_15('rqru'))", "funcname": "main_solution"}
rule