modify

@@ -4,8 +4,11 @@ using namespace std;
 
 
 int main() {
 int main() {
 	string input;
 	string input;
+	while (true) {
 		cin >> input;
 		cin >> input;
+		if (input == "exit")
+			exit(100);
 		cout << input << "\n";
 		cout << input << "\n";
-
+	}
 	return 0;
 	return 0;
 }
 }
\ No newline at end of file