public class Amicable {
 
  public Amicable() {
  }
  int duplicates = 0;
 
  public int findAddFactors(int num)
  {
    int factorSum = 1;
    for (int i=2; i<=(num /2); i++)
    {
      if ((num%i)==0)
	factorSum+=i;
    }
    return factorSum;
  }
  public String areAmicable(int num)
  {
    if (num!=duplicates)
    {
      int pair1 = findAddFactors(num);
      int pair2 = findAddFactors(pair1);
      if ((num==pair2) && (pair1!=pair2))
      {
	duplicates = pair1;
	return "("+pair2+","+pair1+")";
      }
      else
	return null;
    }
    else
      return null;
  }
 
  public static void main(String args[])
  {
  Amicable test = new Amicable();
  for (int i=1; i<=1000;i++)
  {
    String res = test.areAmicable(i);
    if (res!=null)
      System.out.println(res);
  }
  }
}