#include <stdio.h>

int main()
{
  const unsigned n_max = 999999;

  unsigned n, m, d;

  for (n = 1; n <= n_max; n++)
    {
      for (d = 1, m = 0; d < n; d++)
        if (!(n % d))
          m += d;

      if (m == n)
        printf("%u\n", n);
    }
}