You are given a code:

def main_solution(x):
    return (func_15(x) + func_13('pxh', '_'))

Can you predict the output of `main_solution("ateucwvoic")` 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": "ateucwvoic"}, "ref_output": "\u00aba\u00bb\u00abt\u00bb\u00abe\u00bb\u00abu\u00bb\u00abc\u00bb\u00abw\u00bb\u00abv\u00bb\u00abo\u00bb\u00abi\u00bb\u00abc\u00bbp_x_h", "ref_code": "def main_solution(x):\n    return (func_15(x) + func_13('pxh', '_'))", "funcname": "main_solution"}
rule