#include <iostream>

using namespace std;

int main()
{
    int n, k, l, f;
    cin >> n >> k >> l >> f;
    int x, folotte=0, alatta=0, db=0;
    bool hoseg = false;
    for(int i=1; i<=n; i++)
    {
        cin >> x;
        if(x>f){
            alatta = 0;
            folotte++;
        }

        if(x<f)
        {
            alatta++;
            folotte=0;
        }
         if(x==f)
        {
            alatta=0;
            folotte=0;
        }
        if(alatta==l)
        {
            folotte=0;
            alatta=0;
            hoseg=false;
        }
        if(folotte==k && !hoseg)
        {
            db++;
            hoseg=true;
        }

    }
    cout << db;

    return 0;
}