Problem: You're given an integer n. For every integer i from 2 to n, assign a positive integer a_i such that the following conditions hold:

  * For any pair of integers (i,j), if i and j are coprime, a_i ≠ a_j. 
  * The maximal value of all a_i should be minimized (that is, as small as possible). 



A pair of integers is called [coprime](https://en.wikipedia.org/wiki/Coprime_integers) if their [greatest common divisor](https://en.wikipedia.org/wiki/Greatest_common_divisor) is 1.

Input

The only line contains the integer n (2 ≤ n ≤ 10^5).

Output

Print n-1 integers, a_2, a_3, …, a_n (1 ≤ a_i ≤ n). 

If there are multiple solutions, print any of them.

Examples

Input


4


Output


1 2 1 

Input


3


Output


2 1

Note

In the first example, notice that 3 and 4 are coprime, so a_3 ≠ a_4. Also, notice that a=[1,2,3] satisfies the first condition, but it's not a correct answer because its maximal value is 3.

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
vector<vector<long long>> v(1000000);
int main() {
  long long n, i, t, cnt = 1, j, p, f;
  cin >> n;
  long long c[n + 1];
  for (i = 2; i <= n; i++) {
    p = 1;
    for (j = 2; j * j <= i; j++) {
      if (i % j == 0) {
        p = 0;
        break;
      }
    }
    if (p) v[i].push_back(i);
  }
  for (i = 2; i <= n; i++) {
    f = 0;
    for (j = 2; j * j <= i; j++) {
      if (i % j == 0) {
        f = 1;
        break;
      }
    }
    if (f) v[j].push_back(i);
  }
  for (i = 2; i <= n; i++) {
    if (v[i].size()) {
      for (auto x : v[i]) {
        c[x] = cnt;
      }
      cnt++;
    }
  }
  for (i = 2; i <= n; i++) {
    cout << c[i] << " ";
  }
}