You are given a code:

def main_solution(x):
    return func_20(func_15('rvxwk'), ('pmquzq' + 'xjtifj'))

Can you predict the output of `main_solution("wscvga")` 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": "wscvga"}, "ref_output": "\u00abprm\u00bbq\u00abuvz\u00bbq\u00abxxj\u00bbt\u00abiwf\u00bbj\u00abk\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('rvxwk'), ('pmquzq' + 'xjtifj'))", "funcname": "main_solution"}
rule