diff --git a/.ipynb_checkpoints/Untitled-checkpoint.ipynb b/.ipynb_checkpoints/Untitled-checkpoint.ipynb
new file mode 100644
index 0000000..363fcab
--- /dev/null
+++ b/.ipynb_checkpoints/Untitled-checkpoint.ipynb
@@ -0,0 +1,6 @@
+{
+ "cells": [],
+ "metadata": {},
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/Untitled.ipynb b/Untitled.ipynb
new file mode 100644
index 0000000..b83cbf3
--- /dev/null
+++ b/Untitled.ipynb
@@ -0,0 +1,319 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "e6149cb4-9b21-4a74-b291-0e235545fd19",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Reinitialized existing Git repository in C:/Users/korne/Documents/git/ium_478815/.git/\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git init"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "57e08933-c129-40fe-a66d-c9af848f6e15",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Initialized DVC repository.\n",
+      "\n",
+      "You can now commit the changes to git.\n",
+      "\n",
+      "+---------------------------------------------------------------------+\n",
+      "|                                                                     |\n",
+      "|        DVC has enabled anonymous aggregate usage analytics.         |\n",
+      "|     Read the analytics documentation (and how to opt-out) here:     |\n",
+      "|             <https://dvc.org/doc/user-guide/analytics>              |\n",
+      "|                                                                     |\n",
+      "+---------------------------------------------------------------------+\n",
+      "\n",
+      "What's next?\n",
+      "------------\n",
+      "- Check out the documentation: <https://dvc.org/doc>\n",
+      "- Get help and share ideas: <https://dvc.org/chat>\n",
+      "- Star us on GitHub: <https://github.com/iterative/dvc>\n"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc init"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "c4887a28-9070-4334-ad28-e73df0e8ba95",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "On branch master\n",
+      "Your branch is up to date with 'origin/master'.\n",
+      "\n",
+      "Changes to be committed:\n",
+      "  (use \"git restore --staged <file>...\" to unstage)\n",
+      "\tnew file:   .dvc/.gitignore\n",
+      "\tnew file:   .dvc/config\n",
+      "\tnew file:   .dvcignore\n",
+      "\n",
+      "Changes not staged for commit:\n",
+      "  (use \"git add/rm <file>...\" to update what will be committed)\n",
+      "  (use \"git restore <file>...\" to discard changes in working directory)\n",
+      "\tdeleted:    petite-difference-challenge2\n",
+      "\n",
+      "Untracked files:\n",
+      "  (use \"git add <file>...\" to include in what will be committed)\n",
+      "\t.ipynb_checkpoints/\n",
+      "\tUntitled.ipynb\n",
+      "\tinit/\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git status"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "id": "09d5820e-9160-46b4-9b09-c8e7067d5614",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[master 2880651] Initial commit\n",
+      " 3 files changed, 6 insertions(+)\n",
+      " create mode 100644 .dvc/.gitignore\n",
+      " create mode 100644 .dvc/config\n",
+      " create mode 100644 .dvcignore\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git commit -m \"Initial commit\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "id": "471bb42c-0aa9-4f80-8886-62ac1f5ffd65",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "To track the changes with git, run:\n",
+      "\n",
+      "    git add .gitignore data.csv.dvc\n",
+      "\n",
+      "To enable auto staging, run:\n",
+      "\n",
+      "\tdvc config core.autostage true\n"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc add data.csv"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "id": "b0ecb958-3587-4e05-a805-2f2d3f202a76",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "rm 'data.csv'\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git rm -r --cached data.csv"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "id": "e0e98bc7-05c7-4559-ab72-59789078a0ff",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[master 1094a03] stop tracking data.csv\n",
+      " 1 file changed, 4601 deletions(-)\n",
+      " delete mode 100644 data.csv\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git commit -m \"stop tracking data.csv\" "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "id": "6c78dec3-5e84-408e-bc18-a1d6479e29ae",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!git add .gitignore data.csv.dvc"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "e18dc1d8-a34c-470c-a029-64a566f4edf8",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[master 6a55468] Dodano dane dvc\n",
+      " 2 files changed, 5 insertions(+)\n",
+      " create mode 100644 .gitignore\n",
+      " create mode 100644 data.csv.dvc\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git commit -m \"Dodano dane dvc\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "487150ca-dc73-4acb-9034-0b39a7c71838",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Setting 'my_local_remote' as a default remote.\n"
+     ]
+    }
+   ],
+   "source": [
+    "!dvc remote add -d my_local_remote /dvcstore"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "7e90da01-b1b5-405e-94bc-aa51676f076f",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "On branch master\n",
+      "Your branch is ahead of 'origin/master' by 3 commits.\n",
+      "  (use \"git push\" to publish your local commits)\n",
+      "\n",
+      "Changes not staged for commit:\n",
+      "  (use \"git add/rm <file>...\" to update what will be committed)\n",
+      "  (use \"git restore <file>...\" to discard changes in working directory)\n",
+      "\tmodified:   .dvc/config\n",
+      "\tdeleted:    petite-difference-challenge2\n",
+      "\n",
+      "Untracked files:\n",
+      "  (use \"git add <file>...\" to include in what will be committed)\n",
+      "\t.ipynb_checkpoints/\n",
+      "\tUntitled.ipynb\n",
+      "\tinit/\n",
+      "\n",
+      "no changes added to commit (use \"git add\" and/or \"git commit -a\")\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git status"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "id": "0bdb37ec-5d22-4bcd-a58f-ec306b1292a5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!git add .dvc/config"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "id": "c639c9d6-8aed-43f4-8d4f-830d4fcc4692",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[master 21ecd25] Added DVC remote\n",
+      " 1 file changed, 4 insertions(+)\n"
+     ]
+    }
+   ],
+   "source": [
+    "!git commit -m \"Added DVC remote\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "77ecb697-f936-4ea4-9d16-bcd870ab8561",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.12"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/init b/init
new file mode 160000
index 0000000..54c31e2
--- /dev/null
+++ b/init
@@ -0,0 +1 @@
+Subproject commit 54c31e20d2948aa70a6331cf63fb7a9e9499e40e
diff --git a/petite-difference-challenge2 b/petite-difference-challenge2
deleted file mode 160000
index c484d01..0000000
--- a/petite-difference-challenge2
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit c484d015f79b0469646d8bc5e3ffdf2e0c732c76