hang 2 moc the nay ban nhe:
4 mui binh, 3 mui T chum dau chum chan vao chan so 3(cua hang 1)
3 mui binh, 2 mui chum dau chum chan vao dau mui chu T vua moc xong(cua hang 2)
1 mui x vao chan so 7(cua hang 1)
3 mui binh, 2 mui T chum dau chum chan vao chan mui binh thu nhat trong 3 mui binh vua moc xong, 3 mui T chum dau chum chan vao chan so 9( cua hang 1), 3 mui T chum dau chum chan vao chan so 15 (cua hang 1)(chu thich cac ban khong moc thanh 3 lan rieng biet, sau khi moc xong 9 mui T thi moi keo ket thuc 1 lan)
3 mui binh , 2 mui T chum dau chum chan vao dau cua 9 mui T truoc (cua hang so 2)
moc tuong tu cho den het hang....