You are given a code:

def main_solution(x):
    return func_20(func_15('zwlru'), func_1('jzyio', 4))

Can you predict the output of `main_solution("kmmffomazl")` 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": "kmmffomazl"}, "ref_output": "\u00abjzz\u00bby\u00abiwo\u00bbj\u00abzly\u00bbi\u00aborj\u00bbz\u00abyui\u00bbojzyio", "ref_code": "def main_solution(x):\n    return func_20(func_15('zwlru'), func_1('jzyio', 4))", "funcname": "main_solution"}
rule