2 3 4 5 6 7 8 9 14154 2530217036829TL A D B A B D A D A A C B B...

Câu 1 2 3 4 5 6 7 8 9 1

4

1

5

4 25

3

0

2

7

6

8

9

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