You are given a code:

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

Can you predict the output of `main_solution("fzlgil")` 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": "fzlgil"}, "ref_output": "\u00abi\u00bb\u00abn\u00bb\u00abp\u00bb\u00abp\u00bb\u00abq\u00bb\u00abi\u00bb\u00abn\u00bb\u00abp\u00bb\u00abp\u00bb\u00abq\u00bb", "ref_code": "def main_solution(x):\n    return func_1(func_15('inppq'), 2)", "funcname": "main_solution"}
rule