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A-PRINCE tweeted�adorable photos of the members when they were children in honor of the national holiday, and fans couldn't get enough of their chubby cheeks, smiles, and aegyo back when they had all their baby fat.

Can you guess who's who?

"How was I when I was little? I'm cute, right hehe #ChildrensDay."

Woobin tweeted, "When child Woobin was little~ #ChildrensDay."

"Among the three of them, who is the A-PRINCE [member]?"