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

Câu 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16TL A D A D D D C B A C C C A A C D