5+5=1 mà ko phải bằng 10 vì ĐỨA RA KẾT QUẢ QUÁ BÁ ĐẠO!!!!!!!!!!!!!!
Đơn giản là chỉ vì cậu đã làm sai hoặc viết thiếu XD
lolllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll