import java.util.*;
 
interface Sortable
{
	public int compare( Sortable compareTo );
}
 
class SortableDouble implements Sortable
{
	public double value;
 
	public SortableDouble( double aValue )
	{
		value = aValue;
	}
 
	public int compare( Sortable compareTo )
	{
 		if (value > ((SortableDouble)compareTo).value)
			return 1;
		else if (value < ((SortableDouble)compareTo).value)
			return -1;
		else
			return 0;
	}
}
 
class SortableList<T extends Sortable> extends ArrayList<T>
{
	public void Sort()
	{
	}
 
    	public SortableList<T> Highest( int n )
	{
		Sort();
		return null;
	}
}
 

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