#include <bits/stdc++.h>
using namespace std;
int main() {
  int i, n, a, b, s, k = 2, p, t[101];
  cin >> n >> a >> b;
  if (n - a == 1 && n != 1) {
    cout << -1;
    return 0;
  } else if (b > 0)
    t[0] = 1;
  else {
    t[0] = 0;
    a++;
  }
  cout << 1 << " ";
  for (i = 1; i < n; i++) {
    if (i <= b)
      t[i] = t[i - 1] * 2;
    else if (i <= b + a)
      t[i] = t[i - 1] + 1;
    else
      t[i] = t[i - 1];
    cout << t[i] << " ";
  }
  return 0;
}
