diff --git a/app/main.py b/app/main.py
index 6d375672..d795b2c9 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,25 +1,79 @@
+from __future__ import annotations
 from abc import ABC
 
 
 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, instance: any, owner: any) -> tuple:
+        return self.min_amount, self.max_amount
+
+    def __set__(self, instance: any, value: int) -> None:
+        if self.min_amount <= value <= self.max_amount:
+            setattr(instance, self.name, value)
+        else:
+            raise ValueError(
+                f"Value must be between "
+                f"{self.min_amount} and {self.max_amount}"
+            )
+
+    def __set_name__(self, owner: any, name: any) -> None:
+        self.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
+    def __init__(self,
+                 age_range: IntegerRange,
+                 weight_range: IntegerRange,
+                 height_range: IntegerRange) -> None:
+        self.age_range = age_range
+        self.weight_range = weight_range
+        self.height_range = height_range
 
 
 class ChildrenSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    def __init__(self) -> None:
+        super().__init__(
+            IntegerRange(4, 14),
+            IntegerRange(20, 51),
+            IntegerRange(80, 121)
+        )
 
 
 class AdultSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    def __init__(self) -> None:
+        super().__init__(IntegerRange(14, 61),
+                         IntegerRange(50, 121),
+                         IntegerRange(120, 221)
+                         )
 
 
 class Slide:
-    pass
+    def __init__(self, name: str, limitation_class: type) -> None:
+        self.name = name
+        self.limitation_class = limitation_class()
+
+    def can_access(self, visitor: Visitor) -> bool:
+        return (
+            self.limitation_class.age_range.min_amount
+            <= visitor.age <= self.limitation_class.age_range.max_amount
+            and self.limitation_class.weight_range.min_amount
+            <= visitor.weight <= self.limitation_class.weight_range.max_amount
+            and self.limitation_class.height_range.min_amount
+            <= visitor.height
+            <= self.limitation_class.height_range.max_amount
+        )