You are given a code:

def main_solution(x):
    return func_20(('jrms' + 'pryx'), func_13('yun', '-'))

Can you predict the output of `main_solution("hbzkm")` 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": "hbzkm"}, "ref_output": "jyr-mus-pnryx", "ref_code": "def main_solution(x):\n    return func_20(('jrms' + 'pryx'), func_13('yun', '-'))", "funcname": "main_solution"}
rule