FindNumber

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        List<int> a = Console.ReadLine().Split().Select(int.Parse).ToList();
        int b = int.Parse(Console.ReadLine());
        a = a.FindAll(x => x==b).ToList();
        Console.WriteLine(a.Count());
    }
}