static void Main(string[] args)
        {
            Console.WriteLine("Access to x: " + sampleClass.x);
            sampleClass obj = new sampleClass();

            Console.WriteLine("Access to y: " + obj.y);
        }
        // Перегрузка -
        public static sampleClass operator -(sampleClass o1, sampleClass o2)
        {
            sampleClass res = new sampleClass();

            res.x = o1.x - o2.x;
            res.y = o1.y - o2.y;
            return(res);
        }
        static void Main(string[] args)
        {
            sampleClass j    = new sampleClass(100, 64);
            sampleClass obj2 = new sampleClass(-74, 28);

            Console.WriteLine("First object: " + j.x + " " + j.y);
            Console.WriteLine("Second object: " + obj2.x + " " + obj2.y);
            sampleClass obj3 = j + obj2;

            Console.WriteLine("j + obj2: " + obj3.x + " " + obj3.y);
            obj3 = j - obj2;
            Console.WriteLine("j - obj2: " + obj3.x + “ “ + obj3.y);
        }