#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm> 
#include<string>
#include<cstring>
using namespace std;
int main()
{
    int n;
    while(cin >> n){
        if (n == 0)continue;
        int arr[1000] = { 0 };
        for (int i = 0; i < n; i++) {
            cin >> arr[i];
        }
        int a;
        cin >> a;
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            if (arr[i] == a) {
                cnt++;
            }
        }
        cout << cnt << endl;
    }
    return 0;
}