class All_628
{
	public static void main( String[] args){
		for( int n=1; n<9999; n++)
			if( n==divsum(n)  ) System.out.println(n);
	}
	public static int divsum( int n ){
		int s = 0;
		for( int i=1; i<n; i++ )
			if( n%i == 0 ) s+=i;
		return s;
	}
}