#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, b;
  scanf("%d%d%d", &n, &a, &b);
  if (!a && !b) {
    for (int i = 0; i < n; i++) printf("1 ");
    return 0;
  }
  if (a && a == n - 1) {
    cout << -1 << endl;
    return 0;
  }
  vector<int> ans;
  if (b) {
    int cur = 1;
    ans.push_back(cur);
    for (int i = 0; i < b; i++) cur *= 2, ans.push_back(cur);
    for (int i = 0; i < a; i++) ans.push_back(cur + 1), cur++;
    while (ans.size() < n) ans.push_back(1);
  } else {
    ans.push_back(5);
    ans.push_back(4);
    int cur = 5;
    for (int i = 1; i <= a; i++) ans.push_back(cur + 1), cur++;
    while (ans.size() < n) ans.push_back(1);
  }
  for (int i = 0; i < ans.size(); i++) printf("%d ", ans[i]);
  return 0;
}
