/* 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
	{
		Map<String, List<Integer>> map = new HashMap<String, List<Integer>>() {{
		put("a", Arrays.asList(0,1,2,3,4));
		put("b", Arrays.asList(5,6,7,8,9));
		}};
	
		
		for (Map.Entry<String, List<Integer>> entry: map.entrySet()) {
			System.out.println(entry.getKey() + " " + entry.getValue().toString());
		}
	}
}