You are given a code:

def main_solution(x):
    return func_20('kryjqt', 'amjev')

Can you predict the output of `main_solution("mcyxzdgyky")` 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": "mcyxzdgyky"}, "ref_output": "karmyjjeqvt", "ref_code": "def main_solution(x):\n    return func_20('kryjqt', 'amjev')", "funcname": "main_solution"}
rule