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using System;

class Dog {
    public string name;
    public string breed;
    public int age;
    
    // Write constructor code below this line
    
    // Write constructor code above this line
    
    public void bark() {
        Console.WriteLine("Woof!");
    }
}

public class ConsoleApp
{
    public static void Main(string[] args)
    {
        Dog dog = new Dog("Dobby", "Dobermann", 4);
        dog.bark();
    }
}