using System;
using System.Linq;
using System.Numerics;

namespace Grab_and_Go
{
    class Program
    {
        static void Main(string[] args)
        {
            BigInteger[] numbers = Console.ReadLine()
                .Split(' ')
                .Select(BigInteger.Parse)
                .ToArray();

            BigInteger numberStop = BigInteger.Parse(Console.ReadLine());
            var count = 0;
            BigInteger sum = 0;
            for (int i = 0; i < numbers.Length; i++)
            {

                if (numbers[i] == numberStop)
                {
                    count++;
                    if(count == 2)
                    {
                        Console.WriteLine(sum);
                        break;
                    }
                }
                sum += numbers[i];
            }
            if(count == 0)
            {
                Console.WriteLine("No occurrences were found!");
            }

        }
    }
}