You are given a code:

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

Can you predict the output of `main_solution("emrmqvej")` 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": "emrmqvej"}, "ref_output": "\u00abdew\u00bbt\u00absmu\u00bbc\u00abdrw\u00bbt\u00absmu\u00bbc\u00abdqw\u00bbt\u00absvu\u00bbc\u00abe\u00bb\u00abj\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_1('dwtsuc', 3))", "funcname": "main_solution"}
rule