You are given a code:

def main_solution(x):
    return func_20(func_15(x), ('nxltov' + 'lpsxxg'))

Can you predict the output of `main_solution("jmdy")` 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": "jmdy"}, "ref_output": "\u00abnjx\u00bbl\u00abtmo\u00bbv\u00abldp\u00bbs\u00abxyx\u00bbg", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), ('nxltov' + 'lpsxxg'))", "funcname": "main_solution"}
rule