content: import java.io.*;
  import java.util.*;
  import java.text.*;
  import java.math.*;
  import java.util.regex.*;
  
  public class Solution {
  	
      public static void main(String[] args) {
          int i = 4;
          double d = 4.0;
          String s = "HackerRank ";
  		
          Scanner scan = new Scanner(System.in);
  
          /* Declare second integer, double, and String variables. */
          int i2;
          double d2;
          String s2;
  
          /* Read and save an integer, double, and String to your variables. */
          i2 = scan.nextInt();
          d2 = scan.nextDouble();
          s2 = scan.nextLine();
          s2 = scan.nextLine();
          
          /* Print the sum of both integer variables on a new line. */
          System.out.println(i + i2);
          
          /* Print the sum of the double variables on a new line. */
          System.out.println(d + d2);
          
          /*
           * Concatenate and print the String variables on a new line; the 's'
           * variable above should be printed first.
           */
          System.out.println(s + s2);
          
  
          scan.close();
      }
  }