import java.io.*;
   import java.util.*;

    class ppp{
   
       public static void main(String[] args) throws IOException{
         Scanner s = new Scanner(new File("DATA5.txt"));
         PrintStream p = new PrintStream(new FileOutputStream("OUT5.txt"));
         p.println("1:2 3 4");
         p.println("2:1 3 4");
         p.println("3:4");
         p.println("4:");
         p.println("5:3 4");
      }
   }