#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n, a, b;
  cin >> n >> a >> b;
  vector<long long> res;
  long long current_somme = 0;
  for (int i = 0; i < n; i++) {
    if (i == 0)
      res.push_back(1);
    else {
      if (b > 0) {
        res.push_back(current_somme + 1);
        b--;
      } else {
        if (a > 0) {
          long long tmp = res[i - 1];
          res.push_back(tmp);
          if (tmp <= current_somme - 1) {
            res[i]++;
            a--;
          }
        } else
          res.push_back(res[i - 1]);
      }
    }
    current_somme += res[i];
  }
  if (a > 0 || b > 0)
    cout << "-1";
  else
    for (long long i = 0; i < n; i++) cout << res[i] << " ";
  cout << endl;
  return 0;
}
