You are given a code:

def main_solution(x):
    return func_20(func_15('hkpac'), func_1(x, 2))

Can you predict the output of `main_solution("lvkai")` 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": "lvkai"}, "ref_output": "\u00ablhv\u00bbk\u00abaki\u00bbl\u00abvpk\u00bba\u00abia\u00bb\u00abc\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('hkpac'), func_1(x, 2))", "funcname": "main_solution"}
rule