using System;

public class Program

{

    public static void Main()

    {

        var a = int.Parse(Console.ReadLine());

        var b = int.Parse(Console.ReadLine());

        var c = int.Parse(Console.ReadLine());

        var firstSpiral = int.Parse(Console.ReadLine());

        var step = int.Parse(Console.ReadLine());

        var spiralCurrent = firstSpiral;

        var tribo = 0;

        var spiralMul=1;

        var count=1;

​

        while(spiralCurrent<=1000000 && tribo<=1000000)

        {

            if(firstSpiral==a||firstSpiral==b||firstSpiral==c)

            {

                Console.WriteLine(firstSpiral);

                return;

            }

            else if(spiralCurrent==tribo)

            {

                Console.WriteLine(tribo);

                return;

            }

            else if(tribo<spiralCurrent)

            {

                tribo = a+b+c;

                a=b;

                b=c;

                c=tribo;                            

            }

            else

            {

                count++;

                if(count>3&&count%2==0)

                {

                    spiralMul++;

                    spiralCurrent+=spiralMul*step;

                }

                else

                {

                    spiralCurrent+=spiralMul*step;

                }

                //Console.WriteLine(firstSpiral);

            }

        }

        Console.WriteLine("No");

​

    }

}