You are given a code:

def main_solution(x):
    return func_3(func_20('ala', 'zkgy'))

Can you predict the output of `main_solution("iakzxt")` 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": "iakzxt"}, "ref_output": "aagklyz", "ref_code": "def main_solution(x):\n    return func_3(func_20('ala', 'zkgy'))", "funcname": "main_solution"}
rule