Hello World, I'm Cong !! 👋 𝐇𝐞𝐥𝐥𝐨 𝐠𝐮𝐲𝐬, 𝐈'𝐦 Duong Van Cong. 𝐒𝐜𝐡𝐨𝐨𝐥: 𝐓𝐡𝐮𝐲 𝐋𝐨𝐢 U𝐧𝐢𝐯𝐞𝐫𝐬𝐢𝐭𝐲. 𝐁𝐢𝐫𝐭𝐡𝐝𝐚𝐲: 04/12/2001 𝐂𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞𝐬: 𝐌𝐚𝐭𝐡𝐞𝐦𝐚𝐭𝐢𝐜𝐬, 𝐄𝐧𝐠𝐥𝐢𝐬𝐡