#include <iostream>
#include <set>
#include <vector>
using namespace std;

int main()
{
    int n;
    while (cin >> n)
    {
        vector<int> v;
        int x;
        for (int i = 0; i < n; i++)
        {
            cin >> x;
            v.push_back(x);
        }
        int a, b;
        cin >> a >> b;
        int cnt = 0;
        for (auto el : v)
        {
            if (el >= a && el <= b)
            {
                cnt++;
            }
        }

        cout << cnt << "\n";
    }
}