#include <bits/stdc++.h>
#include <iostream>

using namespace std;

#define int long long

signed main()
{
	cin.tie(NULL);
	ios_base::sync_with_stdio(false);

	int n, a;
	cin >> n;
	vector<int> vec(n);
	for (int i = 0; i < n; i++)
		cin >> vec[i];
	cin >> a;

	int r = n, l = -1;
	while (r - l > 1)
	{
		int mid = (r + l) / 2;
		if (vec[mid] > a)
			r = mid;
		else
			l = mid;
	}

	int temp = l;
	r = n;
	l = -1;
	while (r - l > 1)
	{
		int mid = (r + l) / 2;
		if (vec[mid] >= a)
			r = mid;
		else
			l = mid;
	}

	cout << temp - r + 1;

	return 0;
}