diff --git a/NationalFlag/NationalFlag/AET.h b/NationalFlag/NationalFlag/AET.h
new file mode 100644
index 0000000..6290a60
--- /dev/null
+++ b/NationalFlag/NationalFlag/AET.h
@@ -0,0 +1,16 @@
+#pragma once
+#include "Pi2.h"
+
+class CAET {
+public:
+	CAET();
+	virtual ~CAET();
+
+public:
+	double x;
+	int yMax;
+	double k;
+	CPi2 ps;
+	CPi2 pe;
+	CAET *pNext;
+};