#include <bits/stdc++.h>
using namespace std;

int main () {
    int n;
    while (cin >> n&&n!=0) {
        map<int,int > mp;
        int score;
        for (int i=0;i<n;i++) {
            cin >> score;
            mp[score]++;
        }
        int target;
        cin >> target;
        bool flag=false;
        for (auto i:mp) {
            if (i.first == target) {
                cout << i.second << endl;
                flag=true;
            }
        }
        if (flag==false) {
            cout << target << endl;
        }

    }
}