#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, x, y;
  cin >> n >> x >> y;
  long long a[n];
  long long b[n];
  if (n == 1)
    cout << 1 << endl;
  else if (y == 0) {
    if (x == n - 1) {
      cout << -1 << endl;
      return 0;
    }
    a[0] = 2;
    a[1] = 2;
    for (int i = 2; i <= (x + 1); i++) a[i] = i + 1;
    for (int i = x + 2; i < n; i++) a[i] = 1;
    for (int i = 0; i < n; i++) cout << a[i] << " ";
    cout << endl;
  } else {
    a[0] = 1;
    for (int i = 1; i <= y; i++) a[i] = (1 << i);
    for (int i = y + 1; i <= y + x; i++) a[i] = a[i - 1] + 1;
    for (int i = x + y + 1; i < n; i++) a[i] = 1;
    bool f = 0;
    for (int i = 0; i < n; i++)
      if (a[i] > 50000) {
        f = 1;
        break;
      }
    f = 0;
    if (f)
      cout << -1 << endl;
    else {
      for (int i = 0; i < n; i++) cout << a[i] << " ";
      cout << endl;
    }
  }
  return 0;
}
