You are given a code:

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

Can you predict the output of `main_solution("bufihbx")` 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": "bufihbx"}, "ref_output": "b\u00aburf\u00bbi\u00abhob\u00bbx\u00abbhu\u00bbf\u00abich\u00bbb\u00abxe\u00bb\u00abm\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_1(x, 2), func_15('rohcem'))", "funcname": "main_solution"}
rule