You are given a code:

def main_solution(x):
    return func_20(func_15('twlloe'), ('usgfg' + 'dsmyr'))

Can you predict the output of `main_solution("svx")` 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": "svx"}, "ref_output": "\u00abuts\u00bbg\u00abfwg\u00bbd\u00abslm\u00bby\u00abrl\u00bb\u00abo\u00bb\u00abe\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('twlloe'), ('usgfg' + 'dsmyr'))", "funcname": "main_solution"}
rule