It looks like it was done with scissors... it was so ripped off that it folded down...
+ Someone even sent it to Chanyeol's Instagramㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ are you crazy?
"I currently contacted the subway. I'm also very taken aback by the situation so I'm waiting for their reply ㅜ I think that I need to stick it back together tomorrow. Thanks everyone for worrying!"
original post: here