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

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

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

    int high = 0, low = 0, count = 0;
    bool riado = false;

    for (int i = 0; i < n; i++) {
        if (!riado) {
            if (a[i] > f) high++;
            else high = 0;

            if (high == k) {
                riado = true;
                count++;
                high = 0;
            }
        }
        else {
            if (a[i] < f) low++;
            else low = 0;

            if (low == l) {
                riado = false;
                low = 0;
            }
        }
    }

    cout << count;
    return 0;
}