You are given a code:

def main_solution(x):
    return func_20('zoolvg', 'xjn')

Can you predict the output of `main_solution("awslnf")` 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": "awslnf"}, "ref_output": "zxojonlvg", "ref_code": "def main_solution(x):\n    return func_20('zoolvg', 'xjn')", "funcname": "main_solution"}
rule