private static void CommandExecutor(ref GenericCollection <string> genericCollection, string input, ref string result)
    {
        string[] commandOfArgs = input
                                 .Split(' ');

        switch (commandOfArgs[0])
        {
        case "Add":
            genericCollection.Add(commandOfArgs[1]);
            break;

        case "Remove":
            int index = int.Parse(commandOfArgs[1]);
            genericCollection.Remove(index);
            break;

        case "Contains":
            result = genericCollection.Contains(commandOfArgs[1]).ToString();
            break;

        case "Swap":
            int index1 = int.Parse(commandOfArgs[1]);
            int index2 = int.Parse(commandOfArgs[2]);
            genericCollection.Swap(index1, index2);
            break;

        case "Greater":
            result = genericCollection.CountGreaterThan(commandOfArgs[1]).ToString();
            break;

        case "Max":
            result = genericCollection.Max();
            break;

        case "Min":
            result = genericCollection.Min();
            break;

        case "Sort":
            Sorter sorter = new Sorter();
            genericCollection = sorter.Sort(genericCollection);
            break;

        case "Print":
            result = genericCollection.Print();
            break;
        }
    }