You are given a code:

def main_solution(x):
    return func_20(func_5('odml', 'kejg'), func_15('mobze'))

Can you predict the output of `main_solution("rmmzmlv")` 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": "rmmzmlv"}, "ref_output": "k\u00abemj\u00bbg\u00abood\u00bbm\u00ablb\u00bb\u00abz\u00bb\u00abe\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_5('odml', 'kejg'), func_15('mobze'))", "funcname": "main_solution"}
rule