You are given a code:

def main_solution(x):
    return func_20(func_1('pdedf', 3), func_15('sljm'))

Can you predict the output of `main_solution("impsfvfhq")` 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": "impsfvfhq"}, "ref_output": "p\u00abdse\u00bbd\u00abflp\u00bbd\u00abejd\u00bbf\u00abpmd\u00bbedf", "ref_code": "def main_solution(x):\n    return func_20(func_1('pdedf', 3), func_15('sljm'))", "funcname": "main_solution"}
rule