diff --git a/app/main.py b/app/main.py
index 6d375672..9aa0f89a 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,25 +1,124 @@
 from abc import ABC
+from typing import Any
 
 
 class IntegerRange:
-    pass
+    def __init__(
+            self,
+            min_amount: int,
+            max_amount: int
+    ) -> None:
+        self.min_amount = min_amount
+        self.max_amount = max_amount
+
+    def __get__(
+            self,
+            obj: Any,
+            objtype: None | Any = None
+    ) -> int | str:
+        value = getattr(obj, self.private_name, None)
+        return value
+
+    def __set__(
+            self,
+            obj: Any,
+            value: int
+    ) -> None:
+        if not isinstance(value, int):
+            raise TypeError(f"{value} must be an integer")
+        if not (self.min_amount <= value <= self.max_amount):
+            raise ValueError(
+                f"{value} must be between "
+                f"{self.min_amount} and {self.max_amount}"
+            )
+        setattr(obj, self.private_name, value)
+
+    def __set_name__(
+            self,
+            owner: Any,
+            name: str
+    ) -> None:
+        self.public_name = name
+        self.private_name = "_" + name
 
 
 class Visitor:
-   pass
+    def __init__(
+            self,
+            name: str,
+            age: int,
+            weight: int,
+            height: int
+    ) -> None:
+        self.name = name
+        self.age = age
+        self.weight = weight
+        self.height = height
 
 
 class SlideLimitationValidator(ABC):
-    pass
+    age = IntegerRange(4, 60)
+    weight = IntegerRange(20, 120)
+    height = IntegerRange(80, 120)
+
+    def __init__(
+            self,
+            age: int,
+            height: int,
+            weight: int
+    ) -> None:
+        self.age = age
+        self.height = height
+        self.weight = weight
 
 
 class ChildrenSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    age = IntegerRange(4, 14)
+    weight = IntegerRange(20, 50)
+    height = IntegerRange(80, 120)
+
+    def __init__(
+            self,
+            age: int,
+            height: int,
+            weight: int
+    ) -> None:
+        super().__init__(age, height, weight)
 
 
 class AdultSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    age = IntegerRange(14, 60)
+    weight = IntegerRange(50, 120)
+    height = IntegerRange(120, 220)
+
+    def __init__(
+            self,
+            age: int,
+            height: int,
+            weight: int
+    ) -> None:
+        super().__init__(age, height, weight)
 
 
 class Slide:
-    pass
+    def __init__(
+            self,
+            name: str,
+            limitation_class: Any
+    ) -> None:
+        self.name = name
+        self.limitation_class = limitation_class
+
+    def can_access(
+            self,
+            visitor: Any
+    ) -> bool:
+        try:
+            self.limitation_class(
+                age=visitor.age,
+                height=visitor.height,
+                weight=visitor.weight
+            )
+            return True
+        except ValueError:
+            return False