#include <bits/stdc++.h>
using namespace std;
vector<long long> ans;
int main() {
  long long n, a, b, i, last = 1;
  cin >> n >> a >> b;
  long long sum = 1;
  if (n == 1) {
    cout << 1;
    return 0;
  }
  if (n == a + 1) {
    cout << -1;
    return 0;
  }
  if (a == 1 && b == 0) {
    for (i = 1; i <= n - 1; i++) cout << 1 << " ";
    cout << 2;
    return 0;
  }
  if (b == 0) {
    for (i = 1; i <= 2; i++) cout << 1 << " ";
    for (i = 1; i <= a; i++) cout << i + 1 << " ";
    for (i = 1; i <= n - 2 - a; i++) cout << 1 << " ";
    return 0;
  }
  ans.push_back(1);
  for (i = 1; i <= b; i++) {
    ans.push_back(sum + 1);
    if (sum + 1 > 50000) {
      cout << -1;
      return 0;
    }
    last = sum + 1;
    sum += (sum + 1);
  }
  for (i = 1; i <= a; i++) {
    ans.push_back(last + i);
    if (last + i > 50000) {
      cout << -1;
      return 0;
    }
  }
  for (i = 1; i <= n - b - a - 1; i++) ans.push_back(1);
  for (i = 0; i < n; i++) cout << ans[i] << " ";
}
