You are given a code:

def main_solution(x):
    return func_20(('wvyew' + 'bvcwst'), func_15(x))

Can you predict the output of `main_solution("rmdwpcmk")` 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": "rmdwpcmk"}, "ref_output": "w\u00abvry\u00bbe\u00abwmb\u00bbv\u00abcdw\u00bbs\u00abtw\u00bb\u00abp\u00bb\u00abc\u00bb\u00abm\u00bb\u00abk\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('wvyew' + 'bvcwst'), func_15(x))", "funcname": "main_solution"}
rule