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

namespace Ex._6
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int sumLeft = 0;
            int sumRight = 0;

            for (int i = 0; i < 2 * n; i++)
            {
                if (i < n)
                {
                    sumLeft += int.Parse(Console.ReadLine());
                }
                else
                {
                    sumRight += int.Parse(Console.ReadLine());
                }
            }


            if (sumLeft == sumRight)

            { Console.WriteLine("yes sum " + sumLeft); }

            else

            {
                int diff = Math.Abs(sumRight - sumLeft);
                Console.WriteLine("no diff " + diff);
            }


        }
    }
}