You are given a code:

def main_solution(x):
    return func_20((x + 'axuzen'), func_5('kbn', 'yi'))

Can you predict the output of `main_solution("grzm")` 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": "grzm"}, "ref_output": "gyrizkmbanxuzen", "ref_code": "def main_solution(x):\n    return func_20((x + 'axuzen'), func_5('kbn', 'yi'))", "funcname": "main_solution"}
rule