#include <stdio.h>
#include <stdlib.h>

int main()
{
  const unsigned nMax=999;
  unsigned int n, sum, div;

  for (n=1;n<=nMax;n++){
    sum=0 ;

    for (div=1;div<n;div++){
        if(n%div==0)
            sum+=div;
                            }
    if (sum==n)
       printf("%u\n",n);

}

    return 0;
}