15 x 16 17 July 8, 2019 16 32 64 128 14 15 x 16 17 x 15 21 15 x 16 x 17 x 18 17 x 15 16 16 x 17 20 Tính 15 x 16 x 17 15 x 14 15 x 10 15 x 16
