#include "bits/stdc++.h"
using namespace std;
#define ll long long
#define endl '\n'
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define rep2(i,a,b) for(int i=int(a);i<int(b);i++)
#define pb emplace_back
#define all(x) (x).begin(),(x).end()
int mod=1e9+7;
int mod2=998244353;
const int INF=1e9;

signed main(){
	ll t,d,l;
	while(1){
		cin>>t>>d>>l;
		if(t==0&&d==0&&l==0)break;
		vector<ll> ch(t-1,0);
		rep(i,t){
			ll x;
			cin>>x;
			if(x>=l){
				for(ll j=i;j<i+d&&j<t-1;j++)ch[j]=1;
			}
		}
		ll ans=0;
		rep(i,t-1)ans+=ch[i];
		cout<<ans<<endl;
	}
}

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