using System;

public class Program

{

    public static void Main()

    {

            int first = int.Parse(Console.ReadLine());

            int second = int.Parse(Console.ReadLine());

            int third = int.Parse(Console.ReadLine());

            int fourth = int.Parse(Console.ReadLine());

​

​

            int firstrs = first + third;

            int secondrs = first + fourth;

            int thirdrs = second + third;

            int fourthrs = second + fourth;

            int fifthrs = third + first;

            int sixthrs = third + second;

            int seventhrs = fourth + first;

            int eightrs = fourth + second;

​

            int firstresult = first + third + fourth;

            int secondresult = first + fourth + third;

            int thirdresult = second + third + fourth;

            int fourthrresult = second + fourth + third;

            int fifthresult = third + first + second;

            int sixthresult = third + second + first;

            int seventhresult = fourth + first + second;

            int eightresult = fourth + second + first;

​

            if (firstrs == eightrs) // 1 + 3 == 4 + 2

            {

                Console.WriteLine("Yes");

                Console.WriteLine(firstrs);

            }

            else if (secondrs == thirdrs) // 1 + 4 == 2 + 3

            {

                Console.WriteLine("Yes");

                Console.WriteLine(secondrs);

            }

            else if (thirdrs == seventhrs) // 2 + 3 == 4 + 1

            {

                Console.WriteLine("Yes");

                Console.WriteLine(thirdrs);

            }

            else if (fourthrs == fifthrs) // 2 + 4 == 3 + 1

            {

                Console.WriteLine("Yes");

                Console.WriteLine(fourthrs);

            }

            else if (firstrs == fourthrs) // 3 + 1 == 2 + 4

            {

                Console.WriteLine("Yes");

                Console.WriteLine(firstrs);

            }

            else if (sixthrs == secondrs) // 3 + 2 == 1 + 4

            {

                Console.WriteLine("Yes");

                Console.WriteLine(sixthrs);

            }

            else if (seventhrs == thirdrs) // 4 + 1 == 2 + 3

            {

                Console.WriteLine("Yes");

                Console.WriteLine(seventhrs);

            }

            else if (eightrs == firstrs) // 4 + 2 == 1 + 3

            {

                Console.WriteLine("Yes");

                Console.WriteLine(eightrs);

            } //

            else if (firstresult == second) // 1 + 3 + 4 ==  2

            {

                Console.WriteLine("Yes");

                Console.WriteLine(firstresult);

            }

            else if (thirdresult == first) // 2 + 3 + 4 == 1

            {

                Console.WriteLine("Yes");

                Console.WriteLine(thirdresult);

            }

            else if (fifthresult == fourth) // 3 + 1 + 2 == 4

            {

                Console.WriteLine("Yes");

                Console.WriteLine(fifthresult);

            }

            else if (seventhresult == third) // 4 + 1 + 2 == 3

            {

                Console.WriteLine("Yes");

                Console.WriteLine(seventhresult);

            }

            else

            {

                Console.WriteLine("No");

            }

    }

}