You are given a code:

def main_solution(x):
    return func_20(func_1('onnl', 4), func_15(x))

Can you predict the output of `main_solution("lxwyceaueu")` 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": "lxwyceaueu"}, "ref_output": "o\u00abnln\u00bbl\u00aboxn\u00bbn\u00ablwo\u00bbn\u00abnyl\u00bbo\u00abncn\u00bbl\u00abe\u00bb\u00aba\u00bb\u00abu\u00bb\u00abe\u00bb\u00abu\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_1('onnl', 4), func_15(x))", "funcname": "main_solution"}
rule