/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
	List<? super Number> test = new ArrayList<>();
        test.add(new Double(1.2));
        test.add(new Integer(1));
        test.add(new Float(2.3));
        if(test.get(0) instanceof Integer){
        	System.out.println("Integer");
        } else if(test.get(0) instanceof Double){
        	System.out.println("Double");
        }
	}
}

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