echo revised

@@ -3,7 +3,12 @@
 using namespace std;
 using namespace std;
 
 
 int main() {
 int main() {
+	do {
+		cout << "if you want to exit, enter exit"
 			string echo;
 			string echo;
 		cin >> echo;
 		cin >> echo;
 		cout << echo;
 		cout << echo;
+	} while (echo != "exit");
+
+	return 0;
 }
 }
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