#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n, K, L, F;
    int mostsok=0, mostkeves=0, szamlalo=0;
    bool elozo, hosegriado=0;
    cin >> n >> K >> L >> F;
    int t[n];
    for(int i=0; i<n; i++) cin >> t[i];
    for(int i=0; i<n; i++)
    {
        if(t[i]>F and hosegriado==false)
        {
            mostsok++;
            mostkeves=0;
        }
        if(t[i]<F and hosegriado==false) mostsok=0;
        if(t[i]<F and hosegriado==true)
        {
            mostkeves++;
        }
        if(t[i]>F and hosegriado==true)
        {
            mostkeves=0;
            mostsok++;
        }
        if(t[i]==F and hosegriado==true)
        {
            mostkeves=0;
        }
        if(t[i]==F and hosegriado==false) mostsok=0;
        elozo=hosegriado;
        if(mostsok>=K) hosegriado=true;
        if(mostkeves>=L) hosegriado=false, mostsok=0, mostkeves=0;
        if(elozo==false and hosegriado==true) szamlalo++;

    }
    cout << szamlalo;
    return 0;
}