#include <bits/stdc++.h>
using namespace std;
int c[1001];
int main() {
  int n, a, b;
  cin >> n >> a >> b;
  int sum = 1, res = 1, f = 0;
  c[1] = 1;
  for (int i = 2; i <= n; i++) {
    if (b > 0) {
      res = sum + 1;
      if (res > 50000) {
        break;
      }
      b--;
    } else {
      if (a > 0 && i > 2) {
        res++;
        if (res > 50000) {
          break;
        }
        a--;
      }
    }
    c[i] = res;
    sum += res;
  }
  if (a > 0 || b > 0) {
    cout << -1 << endl;
  } else {
    for (int i = 1; i < n; i++) {
      cout << c[i] << " ";
    }
    cout << c[n] << endl;
  }
  return 0;
}
