diff --git a/DDA_4_8_4_10_RISKI.ipynb b/DDA_4_8_4_10_RISKI.ipynb
new file mode 100644
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@@ -0,0 +1,146 @@
+{
+  "nbformat": 4,
+  "nbformat_minor": 0,
+  "metadata": {
+    "colab": {
+      "provenance": []
+    },
+    "kernelspec": {
+      "name": "python3",
+      "display_name": "Python 3"
+    },
+    "language_info": {
+      "name": "python"
+    }
+  },
+  "cells": [
+    {
+      "cell_type": "markdown",
+      "source": [
+        "## 4.8 Berhitung dengan jari\n"
+      ],
+      "metadata": {
+        "id": "9Z0JyLEXviks"
+      }
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "QD8-18_HMMup",
+        "outputId": "e42c0068-d94b-48d5-8773-4097eaf38627"
+      },
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "Masukkan angka awal dan akhir (misal 2 50): 8 0\n",
+            "Angka akhir harus lebih besar atau sama dengan angka awal.\n"
+          ]
+        }
+      ],
+      "source": [
+        "def hitung_jari():\n",
+        "    try:\n",
+        "        input_user = input(\"Masukkan angka awal dan akhir (misal 2 50): \")\n",
+        "        awal, akhir = map(int, input_user.split())\n",
+        "\n",
+        "        langkah = (akhir - awal) + 1\n",
+        "\n",
+        "        if langkah <= 0:\n",
+        "            print(\"Angka akhir harus lebih besar atau sama dengan angka awal.\")\n",
+        "            return\n",
+        "\n",
+        "        sisa = langkah % 8\n",
+        "\n",
+        "        if sisa == 1:\n",
+        "            hasil = \"jempol\"\n",
+        "        elif sisa == 2 or sisa == 0:\n",
+        "            hasil = \"telunjuk\"\n",
+        "        elif sisa == 3 or sisa == 7:\n",
+        "            hasil = \"tengah\"\n",
+        "        elif sisa == 4 or sisa == 6:\n",
+        "            hasil = \"manis\"\n",
+        "        elif sisa == 5:\n",
+        "            hasil = \"kelingking\"\n",
+        "\n",
+        "        print(hasil)\n",
+        "\n",
+        "    except ValueError:\n",
+        "        print(\"Input tidak valid! Pastikan memasukkan dua angka dipisahkan spasi.\")\n",
+        "\n",
+        "if __name__ == \"__main__\":\n",
+        "    hitung_jari()"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "source": [
+        "## 4.10 Adakah yang lebih besar"
+      ],
+      "metadata": {
+        "id": "ELOc57LLvuck"
+      }
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "from itertools import permutations\n",
+        "\n",
+        "def hitung_angka_lebih_besar():\n",
+        "    try:\n",
+        "        input_user = input(\"Masukkan angka (maks 10^6): \")\n",
+        "        if not input_user:\n",
+        "            return\n",
+        "\n",
+        "        angka_awal = int(input_user)\n",
+        "        digit = list(input_user)\n",
+        "\n",
+        "        semua_permutasi = set(permutations(digit))\n",
+        "\n",
+        "        hitung = 0\n",
+        "        list_angka_lebih_besar = [] # Untuk dokumentasi saja\n",
+        "\n",
+        "        for p in semua_permutasi:\n",
+        "            angka_baru = int(\"\".join(p))\n",
+        "\n",
+        "            if angka_baru > angka_awal:\n",
+        "                hitung += 1\n",
+        "                list_angka_lebih_besar.append(angka_baru)\n",
+        "\n",
+        "        print(f\"Banyaknya angka lebih besar: {hitung}\")\n",
+        "        if hitung > 0:\n",
+        "            print(f\"Angka-angkanya: {sorted(list_angka_lebih_besar)}\")\n",
+        "\n",
+        "    except ValueError:\n",
+        "        print(\"Input harus berupa angka!\")\n",
+        "\n",
+        "if __name__ == \"__main__\":\n",
+        "    hitung_angka_lebih_besar()"
+      ],
+      "metadata": {
+        "colab": {
+          "base_uri": "https://localhost:8080/"
+        },
+        "id": "DDbw6kOkRph2",
+        "outputId": "27265dd3-7dd7-4aa1-b4af-5179e830d21b"
+      },
+      "execution_count": null,
+      "outputs": [
+        {
+          "output_type": "stream",
+          "name": "stdout",
+          "text": [
+            "Masukkan angka (maks 10^6): 6112\n",
+            "Banyaknya angka lebih besar: 2\n",
+            "Angka-angkanya: [6121, 6211]\n"
+          ]
+        }
+      ]
+    }
+  ]
+}
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