ONI_A

#include <stdio.h>
#include <stdlib.h>

int main(){
	int n, com, prof, num, c=0, p=0, total=0, ola, i, j;
	long int v[100000];
	scanf("%d %d %d",&n, &com, &prof);
	num=com/2;
	if (com%2!=0){
		num++;
	}
	for (i=0;i<n;i++){
		scanf("%li",&v[i]);
	}
	ola=n-com+1;
	for (i=0;i<ola;i++){
		c=0;
		p=0;
		for (j=0;j<com;j++){
			if (v[i+c]>=prof){
				p++;
			}
			c++;
		}
		if (p>=num){
			total++;
		}
	}
	printf("%d\n",total);
}