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Hey Mike, I was so excited when I found out I could get a T-shirt. It was also my first time getting a T-shirt in an online contest. So as a newbie, I wanted to ask how to provide my address information to receive this t-shirt. Is it only necessary to fill in the relevant address in the personal information settings of codeforces?

Thank you very much, but ‘hide problem’, sometimes it heard strange right? For example, maybe I just make a mistake to add the same problem twice. ╮ʕ•͡-•ʔ╭