program

+//
+//  main.cpp
+//  echo
+//
+//  Created by toispre on 2020/09/25.
+//  Copyright © 2020 toispre. All rights reserved.
+//
+
+#include <iostream>
+using namespace std;
+int main() {
+    string a;
+    cin >> a;
+    cout << a << endl;
+    return 0;
+}