diff --git a/lab2/fern/draw_fern.ipynb b/lab2/fern/draw_fern.ipynb
index 35fde18..50af45f 100644
--- a/lab2/fern/draw_fern.ipynb
+++ b/lab2/fern/draw_fern.ipynb
@@ -15,6 +15,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "# ./fern.exe > test.txt\n",
     "with open('test.txt', 'r', encoding='utf-16') as file:\n",
     "    lines = file.readlines()\n",
     "\n",