#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, b;
  cin >> n >> a >> b;
  if (n == a + 1 && !b && n != 1) {
    puts("-1");
    return 0;
  }
  int res[101] = {0};
  res[1] = 1;
  int sum = 1;
  for (int i = 2; i < 2 + b; i++) {
    res[i] = sum + 1;
    sum += res[i];
  }
  if (!b) {
    res[2] = 1;
    sum += 1;
  }
  for (int i = (b == 0 ? 3 : 2 + b); i < (b == 0 ? 3 : 2) + a + b; i++) {
    res[i] = res[i - 1] + 1;
    sum += res[i];
  }
  for (int i = (b == 0 ? 3 : 2) + a + b; i <= n; i++) res[i] = 1;
  for (int i = 1; i < n; i++) cout << res[i] << " ";
  cout << res[n] << endl;
  return 0;
}
