You are given a code:

def main_solution(x):
    return func_20('jskhdy', 'pvxt')

Can you predict the output of `main_solution("akwlkbfz")` 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": "akwlkbfz"}, "ref_output": "jpsvkxhtdy", "ref_code": "def main_solution(x):\n    return func_20('jskhdy', 'pvxt')", "funcname": "main_solution"}
rule