diff --git a/lesson5/main.swift b/lesson5/main.swift
new file mode 100644
index 0000000..0871f10
--- /dev/null
+++ b/lesson5/main.swift
@@ -0,0 +1,145 @@
+//
+//  main.swift
+//  lesson5
+//
+//  Created by Vladislav Elkin on 31.07.2020.
+//  Copyright © 2020 Vladislav Elkin. All rights reserved.
+//
+
+import Foundation
+
+
+enum DoorState{
+    case open, close;
+}
+
+enum EngineState{
+    case start, stop;
+}
+
+enum VolumeState{
+    case full, empty;
+}
+
+enum VolumeAction {
+    case add, get;
+}
+
+protocol AbstractCar {
+      var brand: String {get set}
+      var year: Int {get set}
+      var trunkVolume: Double {get set}
+      var engineState: EngineState {get set}
+      var doorState: DoorState {get set}
+      var volumeState: VolumeState {get set}
+
+}
+
+extension AbstractCar {
+    mutating func changeDoorState (state: DoorState){
+        self.doorState = state;
+    }
+    
+    mutating func changeEngineState(state: EngineState){
+        self.engineState = state;
+    }
+    
+    mutating func changeVolume(action: VolumeAction, count: Double)
+    {
+        switch action {
+            
+        case .add where volumeState == .full:
+            print("Trunk is full");
+        case.add where count >= trunkVolume:
+            volumeState = .full;
+            print("All added, Trunk is full");
+        case .add:
+            print("Added: \(count)");
+            
+            
+        case .get where volumeState == .empty:
+            print("Trunk is empty");
+        case .get where count >= trunkVolume:
+            volumeState = .empty;
+            print("Trunk is empty");
+        case .get:
+            print("Get: \(count)");
+            
+        }
+    }
+}
+
+
+    class TrunkCar: AbstractCar {
+        var brand: String
+        var year: Int
+        var trunkVolume: Double
+        var engineState: EngineState
+        var doorState: DoorState
+        var volumeState: VolumeState
+        var destination: String
+        
+        init(brand: String, year: Int, trunkVolume: Double, engineState: EngineState, doorState: DoorState, volumeState: VolumeState, destination: String) {
+            self.brand = brand;
+            self.year = year;
+            self.trunkVolume = trunkVolume;
+            self.engineState = engineState;
+            self.doorState = doorState;
+            self.volumeState = volumeState;
+            self.destination = destination;
+        }
+
+    }
+
+extension TrunkCar: CustomStringConvertible{
+    var description: String {
+        return "Brand: \(brand) Year: \(year) TrunkVolume: \(trunkVolume) EngineState: \(engineState) DoorState: \(doorState) VolumeState: \(volumeState) Destination: \(destination)";
+    }
+    
+    
+}
+
+class SportCar: AbstractCar {
+    var brand: String
+    var year: Int
+    var trunkVolume: Double
+    var engineState: EngineState
+    var doorState: DoorState
+    var volumeState: VolumeState
+    var maxSpeed: Int
+    var power: Int
+    
+    init(brand: String, year: Int, trunkVolume: Double, engineState: EngineState, doorState: DoorState, volumeState: VolumeState, maxSpeed: Int, power: Int) {
+        self.brand = brand;
+        self.year = year;
+        self.trunkVolume = trunkVolume;
+        self.engineState = engineState;
+        self.doorState = doorState;
+        self.volumeState = volumeState;
+        self.maxSpeed = maxSpeed;
+        self.power = power;
+    }
+    
+}
+
+extension SportCar: CustomStringConvertible{
+    var description: String {
+        return "Brand: \(brand) Year: \(year) TrunkVolume: \(trunkVolume) EngineState: \(engineState) DoorState: \(doorState) VolumeState: \(volumeState) MaxSpeed: \(maxSpeed) Power: \(power)";
+    }
+    
+    
+}
+
+
+var mers = SportCar(brand: "mersede", year: 2019, trunkVolume: 200, engineState: .stop, doorState: .close, volumeState: .full, maxSpeed: 320, power: 612);
+
+mers.changeDoorState(state: .open);
+mers.changeEngineState(state: .start);
+
+print(mers);
+
+var scania = TrunkCar(brand: "Scania", year: 2011, trunkVolume: 1000, engineState: .start, doorState: .open, volumeState: .empty, destination: "Moscow")
+
+scania.changeDoorState(state: .close);
+
+print(scania);