'Solution'

app/main.py

@@ -1 +1,29 @@
-# write your code here
+class Animal:
+    alive = []
+
+    def __init__(self, name: str, health: int = 100, hidden: bool = False):
+        self.health = health
+        self.name = name
+        self.hidden = hidden
+        Animal.alive.append(self)
+
+    def __str__(self):
+        return (f"{{Name: {self.name}, Health: {self.health}, "
+                f"Hidden: {self.hidden}}}")
+
+    def __repr__(self):
+        return (f"{{Name: {self.name}, Health: {self.health}, "
+                f"Hidden: {self.hidden}}}")
+
+
+class Carnivore(Animal):
+    def bite(self, herbivore):
+        if isinstance(herbivore, Herbivore) and not herbivore.hidden:
+            herbivore.health -= 50
+            if herbivore.health <= 0:
+                Animal.alive.remove(herbivore)
+
+
+class Herbivore(Animal):
+    def hide(self):
+        self.hidden = not self.hidden