#include <bits/stdc++.h>
using namespace std;

int main() {
	int n,l,k,f;
	cin >> n >> k >> l >> f;
	vector <int> v(n);
	int kc=0,lc=0;
	int ksum=0,lsum=0;
	for (int i = 0; i < n; i++){
		cin >> v[i];
		if(v[i] > f){
			kc++;
			lc = 0; 
		}else if(v[i] < f){
			lc++;
			kc = 0;
		}
		if(lc >= l){
			kc = 0;
		}
		if(kc >= k){
			ksum++;
		}
		
		
	}
	cout << ksum;
	
	
	
}