You are given a code:

def main_solution(x):
    return func_20(func_15('itirle'), func_20(x, x))

Can you predict the output of `main_solution("sotih")` 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": "sotih"}, "ref_output": "\u00absis\u00bbo\u00abott\u00bbt\u00abiii\u00bbh\u00abhr\u00bb\u00abl\u00bb\u00abe\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('itirle'), func_20(x, x))", "funcname": "main_solution"}
rule