#include <bits/stdc++.h>
using namespace std;
void solve() {
  int n, a, b;
  cin >> n >> a >> b;
  int pre = 1, last = 1;
  if (a != 0 && (b == 0 && n == a + 1)) {
    cout << -1 << '\n';
    return;
  }
  cout << 1 << " ";
  for (int i = 0; i < b; i++) {
    cout << pre + 1 << " ";
    last = pre + 1;
    pre += pre + 1;
  }
  if (n - b - a - 1 > 0 && b == 0) {
    cout << 1 << " ";
    b++;
  }
  for (int i = 0; i < a; i++) cout << ++last << " ";
  for (int i = 0; i < n - a - b - 1; i++) cout << last << " ";
}
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int t = 1;
  while (t--) {
    solve();
  }
  return 0;
}
