#include <iostream>
using namespace std;

int main()
{
    int n, k, l, f;
    cin >> n >> k >> l >> f;

    int felett = 0, alatt = 0, db=0;
    bool van = false;

    int x;
    for (int i = 0; i < n; i++)
    {
        cin >> x;
        if (x > f)
        {
            felett++;
            alatt = 0;
            if (!van && felett >= k)
            {
                db++;
                van = true;
            }
        }
        else if (x < f)
        {
            alatt++;
            felett = 0;
            if (van && alatt >= l)
            {
                van = false;
            }
        }
        else
        {
            felett = 0;
            alatt = 0;
        }
    }

    cout << db;
    return 0;
}