2 3 4 5 6 7 8 9 10 11 12 13 14 15 16TL A D B D A B B D D A D C C...

Câu 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

TL A D B D A B B D D A D C C B D C