import element.*;

public class perfect
{
    public static void main(String args[])
    {
        ConsoleWindow c = new ConsoleWindow();
        final int max = 10000;
        int facsum[] = new int[max+1];
        int n,m;

        // initialize the array (entries 0,1 unused)
        for (n = 2; n <= max; n++)
        {
            facsum[n] = 1;      // one is a factor of all numbers
        }
        // cross out multiples of uncrossed numbers
        for (n = 2; n <= max; n++)
        {
            for (m = 2*n; m <= max; m += n)
            {
                facsum[m] = facsum[m] + n;
            }
        }
        // print out perfect numbers: numbers equal to their index
        for (n = 2; n <= max; n++)
        {
            if (facsum[n] == n) {
                c.out.print(n+" ");
            }
        }
        c.out.println();
        System.exit(0);
    }
}
/*
6 28 496 8128 
 */