#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<ll,ll>;
#define fix(x) fixed << setprecision(x)
#define asc(x) x, vector<x>, greater<x>
#define rep(i, n) for(ll i = 0; i < n; i++)
#define all(x) (x).begin(),(x).end()
template<class T>bool chmin(T&a, const T&b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool chmax(T&a, const T&b){if(a<b){a=b;return 1;}return 0;}

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n,x,m;
    cin >> n >> x >> m;
    vector<int> a(n);
    rep(i,n) cin >> a[i];
    reverse(all(a));
    int cnt = 0;
    rep(i,n){
        while((a[i]>>cnt)>=x){
            m -= n-i;
            cnt++;
            if(m<0){
                cout << "No\n";
                return 0;
            }
        }
    }
    cout << "Yes\n";
    return 0;
}