hahahahahahahahahahahahahahahahahahahahahahahahahhahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahhahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaahahahahahahahahahahahahahahahahahahahahhahahahahahahahahahahahaha
ahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha....mỏi tay quá!
ai tìm ra chữ "hh" nhanh nhất nào? hehe!