#include <bits/stdc++.h>
using namespace std;
int n, a, b;
int ans[105];
int main() {
  while (scanf("%d%d%d", &n, &a, &b) != EOF) {
    if (n == 1) {
      printf("1\n");
      continue;
    } else if (n == a + 1) {
      printf("-1\n");
      continue;
    }
    int i, j, k;
    if (b == 0) {
      ans[1] = ans[2] = 2;
      for (i = 3; i <= a + 2; i++) ans[i] = ans[i - 1] + 1;
      for (i = a + 3; i <= n; i++) ans[i] = 1;
    } else {
      for (i = 1; i <= b + 1; i++) ans[i] = 1 << (i - 1);
      for (i = b + 2; i <= b + 1 + a; i++) ans[i] = ans[i - 1] + 1;
      for (i = b + 2 + a; i <= n; i++) ans[i] = 1;
    }
    for (i = 1; i <= n; i++)
      if (ans[i] > 50000) break;
    if (i <= n)
      printf("-1\n");
    else {
      for (i = 1; i <= n; i++) printf(i == n ? "%d\n" : "%d ", ans[i]);
    }
  }
  return 0;
}
