public override bool Equals(object obj)
        {
            if (obj == null)
            {
                return(false);
            }
            if (obj.GetType() != this.GetType())
            {
                return(false);
            }
            SuperString stud = (SuperString)obj;

            return(this.Name == stud.Name);
        }
        static void Main(string[] args)
        {
            string newStr = "hi";

            WriteLine("Enter string: ");
            string      userString = ReadLine();
            int         kr;
            SuperString a = new SuperString(userString);

            WriteLine("Length of your string is " + a.LengthOfString(out kr));
            WriteLine("Which letter do you want to check?");
            char letterForChecking = Char.Parse(ReadLine());

            WriteLine(a.IsContain(letterForChecking));
            WriteLine("Which letter do you want to replace?");
            char letterForReplace = Char.Parse(ReadLine());

            WriteLine("Which letter do you want to substitute?");
            char letterForSubstitute = Char.Parse(ReadLine());

            a.ReplaceSymbols(ref letterForReplace, letterForSubstitute);
            WriteLine(a.GetType());
            a.PrivateString = newStr;
            WriteLine("Введите строки ");
            string po = ReadLine();
            string pa = ReadLine();
            string pe = ReadLine();

            SuperString[] Array = new SuperString[3];
            Array[0] = new SuperString(po);
            Array[1] = new SuperString(pa);
            Array[2] = new SuperString(pe);
            WriteLine("Какую длину строк хотите вывести?");
            int ab = int.Parse(ReadLine());

            for (int i = 0; i < 3; i++)
            {
                if (Array[i].LengthOfString(out kr) == ab)
                {
                    Array[i].Output();
                }
            }
            WriteLine("Введите слово");
            string nt = ReadLine();

            string[] arr0 = Array[0].str.Split(' ');
            string[] arr1 = Array[1].str.Split(' ');
            string[] arr2 = Array[2].str.Split(' ');
            foreach (var t in arr0)
            {
                if (t == nt)
                {
                    WriteLine(Array[0].str);
                }
            }
            foreach (var t in arr1)
            {
                if (t == nt)
                {
                    WriteLine(Array[1].str);
                }
            }
            foreach (var t in arr2)
            {
                if (t == nt)
                {
                    WriteLine(Array[2].str);
                }
            }
            var user = new { name = "Oleg", age = "19" };

            WriteLine("Имя " + user.name + " возраст " + user.age);
        }