Sometimes I worry about my friend... he's way too into memes, he's always smiling, and he's always spouting nonsense about some "forbidden app."
I don't know what he's talking about, but maybe you can help me figure it out!
All I know is that at one point he went by the username DanFlashes way back in the day. Good luck! Flag format is sdctf{flag}
得到的flag使用NSSCTF{}格式提交。