You are given a code:

def main_solution(x):
    return ('rtx' + 'mbgmeg')

Can you predict the output of `main_solution("mytdyp")` 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": "mytdyp"}, "ref_output": "rtxmbgmeg", "ref_code": "def main_solution(x):\n    return ('rtx' + 'mbgmeg')", "funcname": "main_solution"}
rule