You are given a code:

def main_solution(x):
    return func_20(func_15('qiru'), func_20('cjl', x))

Can you predict the output of `main_solution("olwqoi")` 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": "olwqoi"}, "ref_output": "\u00abcqo\u00bbj\u00ablil\u00bbw\u00abqro\u00bbi\u00abu\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('qiru'), func_20('cjl', x))", "funcname": "main_solution"}
rule