đố các bạn tìm được chữ o nhé ai nhanh tớ tick
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000o00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000o0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000o00000000000000000000000000000000000000000000000000000000000o00000000000000000000000000000000000000000000000000000000o000000000000000000000000000000000000000000000000000000000000000000000000000000o000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000o000000000000000000000000000000000000000000000000000000000000000000000000000000000o00000000000000000000000000000000000000000000000o00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000o000000000000000000000000000000000000000000000000000000000000000000000000000000000
chữ o ở hàng thứ 3; 4;6;7;8;9;10;11 từ trên xuống dưới.
