#include <bits/stdc++.h>
int n, a, b, c[110], now, sum;
int main() {
  scanf("%d%d%d", &n, &a, &b);
  c[1] = now = sum = 1;
  for (int i = 2; i <= n; ++i) {
    if (b)
      now = sum + 1, --b;
    else if (a) {
      if (i != 2) {
        now++;
        a--;
      }
    }
    c[i] = now;
    sum += now;
  }
  if (a || b)
    printf("-1");
  else
    for (int i = 1; i <= n; ++i) printf("%d ", c[i]);
  return 0;
}
