using System;
using System.Linq;

namespace P04_GrabAndGo
{
    class P04_GrabAndGo
    {
        static void Main(string[] args)
        {
            var numArray = Console.ReadLine()
                .Split(' ')
                .Select(long.Parse)
                .ToArray();
            var findLastNum = long.Parse(Console.ReadLine());
            if (numArray.Contains(findLastNum))
            {
                int index = 0;
                for (int i = 0; i < numArray.Length; i++)
                {
                    if (numArray[i] == findLastNum)
                    {
                        index = i;
                    }
                }
                Console.WriteLine(
                    numArray
                    .Take(index)
                    .Sum()
                    );
            }
            else
            {
                Console.WriteLine("No occurrences were found!");
            }
        }
    }
}