/* 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
	{
		// your code goes here
		Map<Integer, List<String>>  map = new HashMap<>();
		map.put(1, new ArrayList<>());
 
		List<String> arr = new ArrayList<>();
		arr.add("HEY");
		arr.add("LOL");
 
		map.put(2, arr);
 
		System.out.println(map);
	}
}

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