You are given a code:

def main_solution(x):
    return func_20((x + 'octy'), func_15(x))

Can you predict the output of `main_solution("kzssbm")` 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": "kzssbm"}, "ref_output": "k\u00abzks\u00bbs\u00abbzm\u00bbo\u00abcst\u00bby\u00abs\u00bb\u00abb\u00bb\u00abm\u00bb", "ref_code": "def main_solution(x):\n    return func_20((x + 'octy'), func_15(x))", "funcname": "main_solution"}
rule