#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, b;
  vector<int> ans;
  int sum = 1;
  int t = 1;
  ans.push_back(1);
  cin >> n >> a >> b;
  n--;
  if (b == 0 && n != 0) --n, ans.push_back(1);
  while (b--) {
    n--;
    t = sum + 1;
    if (t > 500000) {
      cout << "-1";
      return 0;
    }
    ans.push_back(t);
    sum += t;
  }
  while (a--) {
    n--;
    t++;
    if (t > 500000) {
      cout << "-1";
      return 0;
    }
    ans.push_back(t);
  }
  if (n < 0) {
    cout << "-1";
    return 0;
  }
  while (n > 0) ans.push_back(t), n--;
  for (int i = 0; i < ans.size(); ++i) cout << ans[i] << ' ';
}
