You are given a code:

def main_solution(x):
    return func_20((x + 'lygv'), func_15('qhtxg'))

Can you predict the output of `main_solution("xahjtawn")` 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": "xahjtawn"}, "ref_output": "x\u00abaqh\u00bbj\u00abtha\u00bbw\u00abntl\u00bby\u00abgxv\u00bb\u00abg\u00bb", "ref_code": "def main_solution(x):\n    return func_20((x + 'lygv'), func_15('qhtxg'))", "funcname": "main_solution"}
rule