You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_5(x, 'zgim'))

Can you predict the output of `main_solution("ojtsqslh")` 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": "ojtsqslh"}, "ref_output": "\u00abzog\u00bbi\u00abmjo\u00bbj\u00abtts\u00bbq\u00abssl\u00bbh\u00abq\u00bb\u00abs\u00bb\u00abl\u00bb\u00abh\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_5(x, 'zgim'))", "funcname": "main_solution"}
rule