You are given a code:

def main_solution(x):
    return func_20(func_20('rcxnx', 'voftgw'), func_15('veiir'))

Can you predict the output of `main_solution("uxqhvrn")` 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": "uxqhvrn"}, "ref_output": "r\u00abvvc\u00bbo\u00abxef\u00bbn\u00abtix\u00bbg\u00abwi\u00bb\u00abr\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('rcxnx', 'voftgw'), func_15('veiir'))", "funcname": "main_solution"}
rule