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