#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
using i64 = long long;
#define rep(i,n) for(int i=0; i<(int)(n); i++)

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int N,X,M; cin >> N >> X >> M;
    vector<int> A(N); rep(i,N) cin >> A[i];
    i64 Q = 0;
    int q = 0;
    for(int i=N-1; i>=0; i--){
        while(X <= A[i] >> q) q++;
        Q += q;
    }
    cout << ((M < Q) ? "No\n" : "Yes\n");
    return 0;
}