#include <iostream>

using namespace std;

int main()
{
    int N, K, L, F;
    int temp, nrAlarm = 0, above = 0, below = 0;
    bool isAlarm = false;

    cin >> N >> K >> L >> F;
    for(int i = 1; i <= N; i++){
        cin >> temp;
        if(temp > F){
            above++;
            below = 0;
        }
        else if(temp < F){
            above = 0;
            below++;
        }
        else{
            above = 0;
            below = 0;
        }

        if(below >= L){
            isAlarm = false;
        }
        if(above >= K && !isAlarm){
            nrAlarm++;
            isAlarm = true;
        }
    }
    cout << nrAlarm << endl;
    return 0;
}