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 JAVA):

Solution:
import java.util.*;
public class cfproblemA {
	static int[] arr;
	static int count = 0;
    public static void main(String[] args){
    	Scanner s = new Scanner(System.in);
        int n = s.nextInt();
        arr = new int[n+1];
        Arrays.fill(arr, -1);
        int j=0;
        for(int i=2;i<=n;i++) {
        	if(arr[i]==-1) {
        		j++;
        		for(int k=i;k<=n;k+=i) {
        			arr[k] = j;
        		}
        	}
        }
        for(int i=2;i<=n;i++) {
        	System.out.print(arr[i]+" ");
        }
    }
     
}