99999999999999999999999999999999999999999999999999999999999999999x99999999999999999999999999999999x0x9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999x99999999999999999999999999999999999999999999999999999999999999999999
hỏi bằng bao nhiêu
dễ lắm nha
Trả lời :
0
Hk tốt
= 0
hdfhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh