#include <bits/stdc++.h>
using namespace std;
long long ans[505];
int main() {
  long long n, a, b;
  cin >> n >> a >> b;
  ans[1] = 1;
  long long sum = 1, c = 1, ma = 50000;
  for (int i = 2; i <= n; i++) {
    if (b > 0) {
      b--;
      c = sum + 1;
    } else if (a > 0) {
      if (c + 1 > sum) {
      } else {
        a--;
        c++;
      }
    }
    if (c > ma) {
      cout << "-1" << endl;
      return 0;
    }
    ans[i] = c;
    sum += c;
  }
  if (a > 0 || b > 0) {
    cout << "-1" << endl;
    return 0;
  }
  for (int i = 1; i <= n; i++) cout << ans[i] << " ";
  cout << endl;
}
