/* 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
	{
		HashMap<String,String> map = new HashMap<String, String>();
		map.put("A", "B");
		map.put("B", "C");
		map.put("C", "D");
		map.put("D", "E");
 
		map.entrySet().stream().limit(2).forEach(e -> {
			System.out.println(e.getKey() + " : " + e.getValue());
		});
	}
}

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