using System.Collections.Generic;
public class Hello{
    public static void Main(){
        // Your code here!
        int n = int.Parse(System.Console.ReadLine());
        int[] ans = new int[n+1];
        for(int i=0;i<n+1;i++) ans[i] = 0;
        for(int i=1;i<n+1;i++){
            
            if(ans[i] != 0) continue;
            List<int> tmp = new List<int>();
            for(int j=1;i*j*j<=n;j++){
                tmp.Add(i*j*j);
            }
            for(int j=0;j<tmp.Count;j++){
                ans[tmp[j]] = tmp[tmp.Count-1-j];
            }
        }
        int[] anss = new int[n];
        for(int i=0;i<n;i++){
            anss[i] = ans[i+1];
        }
        System.Console.WriteLine(string.Join(" ",anss));
    }
}