Modified Echo

@@ -9,14 +9,16 @@
      "name": "stdout",
      "name": "stdout",
      "output_type": "stream",
      "output_type": "stream",
      "text": [
      "text": [
-      "321\n",
-      "321\n"
+      "exit\n",
+      "exit\n"
      ]
      ]
     }
     }
    ],
    ],
    "source": [
    "source": [
-    "s = str(input())\n",
-    "print(s)"
+    "sent = str(input())\n",
+    "if s == 'exit':\n",
+    "    exit()\n",
+    "print(sent)"
    ]
    ]
   }
   }
  ],
  ],