#include <bits/stdc++.h>
using namespace std;
long long ar[100000], s[100000];
int main() {
  long long n, a, b, i;
  cin >> n >> a >> b;
  ar[1] = 1;
  s[1] = 1;
  i = 2;
  while (b != 0) {
    ar[i] = s[i - 1] + 1;
    s[i] = s[i - 1] + ar[i];
    i++;
    b--;
  }
  while (a != 0) {
    if (ar[i - 1] + 1 > s[i - 1])
      ar[i] = 1;
    else {
      ar[i] = ar[i - 1] + 1;
      a--;
    }
    s[i] = s[i - 1] + ar[i];
    i++;
  }
  if (i > n + 1) {
    cout << "-1" << endl;
    return 0;
  }
  for (i = 1; i <= n; i++) {
    if (ar[i] > 50000) {
      cout << "-1" << endl;
      return 0;
    }
  }
  for (i = 1; i <= n; i++) {
    if (ar[i] == 0)
      cout << "1"
           << " ";
    else
      cout << ar[i] << " ";
  }
  return 0;
}
