You are given a code:

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

Can you predict the output of `main_solution("trwreokgt")` 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": "trwreokgt"}, "ref_output": "\u00abm\u00bb\u00abo\u00bb\u00aba\u00bb\u00abg\u00bbbtjrdwvreokgt", "ref_code": "def main_solution(x):\n    return (func_15('moag') + func_20('bjdv', x))", "funcname": "main_solution"}
rule