#include <bits/stdc++.h>
using namespace std;
long long Pow(long long x, long long y, long long m) {
  if (y == 0) return 1;
  long long p = Pow(x, y / 2, m) % m;
  p = (p * p) % m;
  return (y % 2 == 0) ? p : (x * p) % m;
}
vector<long long> a(100006, 1), v;
void Sie(long long n) {
  bool prime[n + 1];
  memset(prime, true, sizeof(prime));
  for (long long p = 2; p * p <= n; p++) {
    if (prime[p] == true) {
      for (long long i = p * p; i <= n; i += p) prime[i] = false;
    }
  }
  for (long long p = 2; p <= n; p++) {
    if (prime[p]) v.push_back(p);
  }
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  long long i, j;
  long long n, cnt = 1;
  cin >> n;
  Sie(n);
  for (i = 0; i < v.size(); i++) {
    long long x = v[i];
    for (j = 1; j <= n && x * j <= n; j++) a[x * j] = cnt;
    cnt++;
  }
  for (i = 2; i <= n; i++) cout << a[i] << " ";
  cout << "\n";
}
