5/22 CSharp: evenSum

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

namespace ConsoleApplication7
{
    class Program
    {
        static int evenSum(int a, int b)
        {
            int sum = 0;
            for (int i = a; i <= b; i++)
            {
                if (i % 2 == 0)
                {
                    sum += i;
                }
            }

            return sum;
        }

        static void Main(string[] args)
        {
            int a, b;
            a = int.Parse( Console.ReadLine() );
            b = int.Parse(Console.ReadLine());
            Console.WriteLine(evenSum(a, b));
        }
    }
}