/**
 * Server entry
 */
import java.util.*;
 public class GameServer{
     public static void main(String args[]){
        System.out.println("Hello, this is server");
     }
 }

@@ -171,8 +171,150 @@
    %7D%0A %7D%0A
+ interface Member%7B%0A %09public int getId();%0A %09public String getName();%0A %7D%0A interface Group%7B%0A %09public int getId();%0A %09public List getMembers();%0A %7D%0A

Add interface group, member