#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<int> vi(n);
  int a, b;
  cin >> a >> b;
  int sum = 1;
  vi[0] = 1;
  bool flag = false;
  for (int i = 1; i < n; i++) {
    if (b) {
      vi[i] = sum + 1;
      b--;
    } else if (a && sum + 1 > vi[i - 1] + 1) {
      vi[i] = vi[i - 1] + 1;
      a--;
    } else {
      vi[i] = vi[i - 1];
    }
    sum += vi[i];
    if (vi[i] > 50000) {
      flag = true;
      break;
    }
  }
  if (flag || a || b) {
    cout << -1 << endl;
    return 0;
  }
  cout << vi[0];
  for (int i = 1; i < n; i++) cout << ' ' << vi[i];
  cout << endl;
  return 0;
}
