#include<stdio.h>
#include<iostream>
#include<vector>;
using namespace std;

int main(){
	int n;
	while(cin>>n && n!=0){
		vector<int> vec(n);
		for(int i = 0; i<n; i++){
			int m;
			cin>>m;
			vec[i] = m;
		}
		int k = 0;
		cin>>k;
		int count = 0;
		for(int i = 0; i<vec.size(); i++){
			if(k == vec[i]){
				count++;
			}
		}
		cout<<count<<endl;
		count = 0;
	}
}