diff --git a/test.py b/test.py
index 4287ca8..704bbe8 100644
--- a/test.py
+++ b/test.py
@@ -1 +1 @@
-#
\ No newline at end of file
+#№№
\ No newline at end of file
diff --git a/yandex/holodos.py b/yandex/holodos.py
new file mode 100644
index 0000000..2689937
--- /dev/null
+++ b/yandex/holodos.py
@@ -0,0 +1,45 @@
+import datetime
+from decimal import Decimal
+
+
+def add(items: dict[str: list[dict]], title: str, amount: Decimal, expiration_date: datetime = None):
+    if expiration_date != None:
+        expiration_date = datetime.datetime.strptime(expiration_date, r'%Y-%m-%d').date()
+    items[title] = items.get(title, [])
+    for index_item in range(len(items[title])):
+        if items[title][index_item]['expiration_date'] == expiration_date:
+           items[title][index_item]['amount'] += amount
+           break
+    else:
+        items[title] = items.get(title, []) + [{'amount': amount, 'expiration_date': expiration_date}]
+    if len(items[title]) == 0:
+        items[title] += [{'amount': amount, 'expiration_date': expiration_date}]
+
+
+def add_by_note(items: dict, note: str):
+    if '-' in note.split()[-1]:
+        title = ' '.join(note.split()[:-2])
+        amount = Decimal(note.split()[-2])
+        expiration_date = note.split()[-1]
+    else:
+        title = ' '.join(note.split()[:-1])
+        amount = Decimal(note.split()[-1])
+        expiration_date = None
+    add(items, title, amount, expiration_date)
+
+
+def find(items: dict, needle: str):
+    needle = needle.lower()
+    finder = [item for item in items.keys() if needle in item.lower()]
+    return finder
+
+
+def amount(items: dict, needle: str):
+    keys = find(items, needle)
+    count = 0
+
+    for title, item in items.items():
+        if title in keys:
+            count += sum([amount['amount'] for amount in item])
+
+    return Decimal(count)
\ No newline at end of file
diff --git "a/\320\237\321\200\320\260\320\272\321\202\320\270\320\272\320\260 4/2.py" "b/\320\237\321\200\320\260\320\272\321\202\320\270\320\272\320\260 4/2.py"
new file mode 100644
index 0000000..e69de29