#include<bits/stdc++.h>
#define INF 1e9
#define llINF 1e18
#define MOD 1000000007
#define pb push_back
#define mp make_pair 
#define F first
#define S second
#define ll long long
#define ull unsigned long long
#define vi vector<ll>
#define vvi vector<vi>
#define BITLE(n) (1LL<<((ll)n))
#define BITCNT(n) (__builtin_popcountll(n))
#define SUBS(s,f,t) ((s).substr((f)-1,(t)-(f)+1))
#define ALL(a) (a).begin(),(a).end()
using namespace std;

int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  ll t,d,l;
  while(cin>>t>>d>>l,t+d+l){
    ll ans=0;
    ll nokori=0;
    for(int i=0;i<t;i++){
      ll x;cin>>x;
      if(nokori>0)ans++;
      nokori--;
      if(l<=x)nokori=d;
      //cout<<nokori<<endl;

    }
    cout<<ans<<endl;
  }
  return 0;
}

