#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using PII = pair<int, int>;
using VI = vector<int>;
void NO() {
  cout << -1 << endl;
  exit(0);
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int n, a, b;
  cin >> n >> a >> b;
  if (n == 1) {
    cout << 1 << endl;
    return 0;
  }
  if (n - 1 == a) NO();
  VI ans(n);
  ans[0] = 1;
  int sum = 1;
  const int MAX = 50000;
  for (int i = 1; i < n; i++) {
    if (b) {
      ans[i] = sum + 1;
      sum = sum + ans[i];
      b--;
    } else if (a) {
      if (i == 1) {
        ans[i] = 1;
      } else {
        ans[i] = ans[i - 1] + 1;
        a--;
      }
    } else {
      ans[i] = 1;
    }
    if (ans[i] > MAX) NO();
  }
  for (int x : ans) {
    cout << x << ' ';
  }
  cout << endl;
  return 0;
}
