You are given a code:

def main_solution(x):
    return func_20(func_1('tchwe', 3), func_15(x))

Can you predict the output of `main_solution("ehaxxyftoj")` 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": "ehaxxyftoj"}, "ref_output": "t\u00abceh\u00bbw\u00abeht\u00bbc\u00abhaw\u00bbe\u00abtxc\u00bbh\u00abwxe\u00bb\u00aby\u00bb\u00abf\u00bb\u00abt\u00bb\u00abo\u00bb\u00abj\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_1('tchwe', 3), func_15(x))", "funcname": "main_solution"}
rule