#include <bits/stdc++.h>
using namespace std;
using namespace std;
long long T, t;
void solve() {
  int i, n, flag = 0, a, sum2 = 0, sum = 0, cnt = 0, cnt1 = 0;
  cin >> n;
  bool mark[100002];
  int mark2[100002];
  memset(mark, true, sizeof(mark));
  memset(mark2, -1, sizeof(mark2));
  cnt = 0;
  for (int p = 2; p * p < 100002; p++) {
    if (mark[p] == true) {
      cnt++;
      for (int i = p * 2; i < 100002; i += p) {
        mark[i] = false;
        if (mark2[i] == -1) mark2[i] = cnt;
      }
    }
  }
  cnt = 0;
  for (long long i = 2; i < n + 1; i++) {
    if (mark[i]) {
      cnt++;
      cout << cnt << " ";
    } else
      cout << mark2[i] << " ";
  }
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  t = 1;
  while (t--) solve();
  return 0;
}
