You are given a code:

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

Can you predict the output of `main_solution("rmsqibnkeb")` 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": "rmsqibnkeb"}, "ref_output": "q\u00abyro\u00bbt\u00abqmx\u00bbr\u00abmss\u00bbq\u00abiqb\u00bbn\u00abkie\u00bbb\u00abb\u00bb\u00abn\u00bb\u00abk\u00bb\u00abe\u00bb\u00abb\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('qyotqx' + x), func_15(x))", "funcname": "main_solution"}
rule