#include <bits/stdc++.h>
using namespace std;

int main() {
  iostream::sync_with_stdio(0), cin.tie(0), cout.tie(0);

  int n, x, m;
  cin >> n >> x >> m;
  vector<int> A(n);
  for (int i = 0; i < n; i++) {
    cin >> A[i];
  }
  vector<pair<int,int>> B;
  for (int i = 0; i < n; i++) {
    if (A[i] >= x) {
      B.push_back({A[i], i});
    }
  }
  while (m > 0 && B.size()) {
    int k = B.back().second;
    if (k + 1 > m) {
      break;
    }
    vector<pair<int,int>> nx;
    for (auto [b, i]: B) {
      int half = b / 2;
      if (half >= x) {
        nx.emplace_back(half, i);
      }
    }
    m -= k + 1;
    swap(nx, B);
  }

  cout << (B.empty() ? "Yes" : "No") << '\n';


  return 0;
}