#include <bits/stdc++.h>
using namespace std;
long long max(long long x, long long y) { return x > y ? x : y; }
long long min(long long x, long long y) { return x < y ? x : y; }
int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  long long n, a, b;
  cin >> n >> a >> b;
  vector<long long> v;
  if (b == 0 and a) {
    if (n <= a + 1) {
      cout << -1;
      return 0;
    }
    v.push_back(1);
  }
  long long d = 1;
  v.push_back(d);
  for (int i = 0; i < b; ++i) {
    d *= 2;
    v.push_back(d);
  }
  for (int i = 0; i < a; ++i) {
    d++;
    v.push_back(d);
  }
  while (v.size() < n) v.push_back(d);
  long long d1, d2;
  d1 = d2 = 0;
  long long p = v[0];
  long long mx = v[0];
  for (long long i = 1; i < v.size(); i++) {
    if (v[i] > p) {
      d2++;
    } else if (v[i] > mx)
      d1++;
    p += v[i];
    mx = max(mx, v[i]);
  }
  if (d1 == a and d2 == b) {
    for (int i = 0; i < n; ++i) {
      cout << v[i] << " ";
    }
  } else
    cout << "-1";
}
