// Liitmine

import java.io.*;

public class liitmine {
    public static void main(String[] args) {
        try {
            FileReader file = new FileReader("liit.sis");
            BufferedReader bro = new BufferedReader(file);
            
            String a = bro.readLine();
            String b = bro.readLine();
            
            String[] nums = b.split(" ");
            b = Integer.toString((new Integer(nums[0])+new Integer(nums[1])));
            
            String out = new String(a+": "+b);
            
            FileWriter fw = new FileWriter("liit.val");
            fw.write(out);
            fw.close();
        } catch(FileNotFoundException e) {
            System.err.println("File not  found!");
        } catch( IOException ioexception ) {
            ioexception.printStackTrace( );
        }
    }
}