#include<bits/stdc++.h>
using namespace std;
int main() {
	int n, s, m, ans=0;
	string d;
	cin >> n;
	for(int i=1; i<=2*n; i+=2){
		cin>> s;
		d[i]=s;
	}
	cin>>m;
	for(int a=1; a<=2*n; a+=2){
		if(d[a]==m)ans+=1;
	}
	cout<<ans;
	return 0;
}