using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Praktika6
{
    class Program
    {
        static void Main(string[] args)
        {

            Solution_08();
            Console.ReadKey();
        }

        static void Solution_08()
        {
            Console.WriteLine("Solution_08: Integer increment from A to B");
            Console.WriteLine("Enter number A");
            int a = int.Parse(Console.ReadLine());
            Console.WriteLine("Enter number B");
            int b = int.Parse(Console.ReadLine());
            Console.WriteLine("Sum from A to B = " + (Solution_08(a, b)));
            Console.WriteLine();
        }

        private static int Solution_08(int a, int b)
        {
            int sum = 0;
            for (int i = a; i <= b; i++)
            {
                sum += i;
            }
            return sum;
        }


    }
}