diff --git a/make a calculater.ipynb b/make a calculater.ipynb
index a21f75c..2d5d7de 100644
--- a/make a calculater.ipynb	
+++ b/make a calculater.ipynb	
@@ -25,12 +25,36 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "c6f8694a",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "a + b = 14\n",
+      "a - b = 6\n",
+      "a * b = 40\n",
+      "a / b = 2.5\n"
+     ]
+    }
+   ],
    "source": [
-    "## TODO : Place your code here"
+    "## TODO : Place your code here\n",
+    "\n",
+    "a = int(input(\"Input integer a =\"))\n",
+    "b = int(input(\"Input integer b =\"))\n",
+    "if type(a) != int or type(b) != int:\n",
+    "    print(\"Please input integer only\")\n",
+    "else:\n",
+    "    print(\"a + b =\", a + b)\n",
+    "    print(\"a - b =\", a - b)\n",
+    "    print(\"a * b =\", a * b)\n",
+    "    if b!=0:\n",
+    "        print(\"a / b =\", a / b)\n",
+    "    else:\n",
+    "        print(\"Can't divide by zero\")"
    ]
   },
   {
@@ -45,18 +69,39 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 20,
    "id": "d040ccd8",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "-215441 + -443040 = -658481\n",
+      "-215441 - -443040 = 227599\n",
+      "-215441 * -443040 = 95448980640\n",
+      "-215441 / -443040 = 0.48627889129649693\n"
+     ]
+    }
+   ],
    "source": [
-    "## TODO : Place your code here"
+    "## TODO : Place your code here\n",
+    "import random\n",
+    "a = random.randint(-10**6, 10**6)\n",
+    "b = random.randint(-10**6, 10**6)\n",
+    "print(f\"{a} + {b} =\", a + b)\n",
+    "print(f\"{a} - {b} =\", a - b)\n",
+    "print(f\"{a} * {b} =\", a * b)\n",
+    "if b!=0:\n",
+    "    print(f\"{a} / {b} =\", a / b)\n",
+    "else:\n",
+    "    print(\"Can't divide by zero\")"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": ".venv",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -70,7 +115,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.0"
+   "version": "3.13.1"
   }
  },
  "nbformat": 4,