#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, b;
  cin >> n >> a >> b;
  if (n == 1) {
    if (a > 0 || b > 0) {
      cout << -1 << endl;
    } else
      cout << 1 << endl;
    return 0;
  }
  if (a + b >= n || (a == n - 1 && b == 0)) {
    cout << -1 << endl;
    return 0;
  }
  cout << "1 ";
  int s = 1;
  int last = 1;
  n--;
  if (b == 0) {
    cout << "1 ";
    n--;
    s = 2;
    if (n == 0) {
      return 0;
    }
  }
  for (int i = 0; i < b; i++) {
    cout << s + 1 << " ";
    last = s + 1;
    s += s + 1;
  }
  for (int i = 0; i < a; i++) {
    cout << last + 1 << " ";
    last++;
    s += last;
  }
  for (int i = 0; i < n - (a + b); i++) {
    cout << "1 ";
  }
  cout << endl;
  return 0;
}
