You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_5('vcda', 'sywz'))

Can you predict the output of `main_solution("ssqjvm")` 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": "ssqjvm"}, "ref_output": "\u00abssy\u00bbw\u00abzsv\u00bbc\u00abdqa\u00bb\u00abj\u00bb\u00abv\u00bb\u00abm\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_5('vcda', 'sywz'))", "funcname": "main_solution"}
rule