You are given a code:

def main_solution(x):
    return func_20(func_15('nzycpm'), func_20('yyxgba', 'kwdp'))

Can you predict the output of `main_solution("bwmoxmbj")` 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": "bwmoxmbj"}, "ref_output": "\u00abynk\u00bby\u00abwzx\u00bbd\u00abgyp\u00bbb\u00abac\u00bb\u00abp\u00bb\u00abm\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('nzycpm'), func_20('yyxgba', 'kwdp'))", "funcname": "main_solution"}
rule