#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  int n, a, b;
  cin >> n >> a >> b;
  if (a && a > n - 2) {
    cout << -1 << endl;
    return 0;
  }
  vector<int> ret(n, 1);
  for (int i = 0; i < (int)(b); i++) ret[1 + i] = ret[i] * 2;
  if (!b && a) {
    ret[0] = 10;
    ret[1] = 10;
    ++b;
  }
  for (int i = 0; i < (int)(a); i++) ret[b + i + 1] = ret[b + i] + 1;
  for (int i = 0; i < (int)(n); i++) cout << ret[i] << " ";
  cout << endl;
  return 0;
}
