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

namespace Problem_7.Inventory_Matcher
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            int number = int.Parse(Console.ReadLine());
            bool isInList = Array.IndexOf(arr, number) != -1;
            if (isInList)
            {
                int lastIndex = Array.LastIndexOf(arr, number);
                int sum = arr.Take(lastIndex).Sum();
                Console.WriteLine(sum);
            }
            else
            {
                Console.WriteLine("No occurrences were found!");
            }
        }
    }
}