#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, b;
  cin >> n >> a >> b;
  vector<int> ans;
  int sum = 1;
  if (b == 0 && a > 0) {
    if (n == a + 1) {
      cout << -1 << endl;
      return 0;
    }
    ans.push_back(1);
    ans.push_back(1);
  } else
    ans.push_back(1);
  while (b--) {
    int current = sum + 1;
    if (current > 50000) {
      cout << -1 << endl;
      return 0;
    }
    ans.push_back(current);
    sum += current;
  }
  while (a--) {
    int current = ans[ans.size() - 1] + 1;
    if (current > 50000) {
      cout << -1 << endl;
      return 0;
    }
    ans.push_back(current);
  }
  for (int i = ans.size(); i < n; i++) {
    ans.push_back(1);
  }
  for (int i = 0; i < ans.size() - 1; i++) {
    cout << ans[i] << " ";
  }
  cout << ans[ans.size() - 1] << endl;
  return 0;
}
