#include <iostream>
using namespace std;

int main() {
    int n;
    while (cin >> n && n != 0) { // 注意 while 处理多个 case
        double a[n];
        for (int i = 0; i < n; i++){	//输入
            cin >> a[i];
        }
        int score;	//给定分数
        cin>>score;
        int count = 0;
        for (int i = 0; i < n; i++){	//统计人数
            if (a[i] == score) count++;
        }
        cout << count << endl;	//输出统计数目
    }
}
// 64 位输出请用 printf("%lld")