include

using namespace std;

int a[30005];

int main() {

int n;
cin >> n;
int count = 0;
for (int i = 0; i < n; i++) {
	cin >> a[i];
}
int m;
cin >> m;
for (int i = m - 1; i >= 0; i--) {
	if (a[m - 1] > a[i]) {
		count++;
	}
}
cout << count;

}