#include<iostream>
using namespace std;

int main()
{
    int N;
    int a[1000];
    int score;
    while (cin >> N,N!=0)
    {
        int num = 0;
        for (int i = 0;i < N;++i)
        {
            cin >> a[i];
        }
        cin >> score;
        for (int j = 0;j < N;++j)
        {
            if (a[j] == score)
                num++;
        }
        cout << num << endl;
    }
    return 0;
}