import java.util.Scanner;

public class A1Q2 {
 public static void main (String[] args) {
  //variables
  double e;
  double h;
  double humidex;

  //get input
  Scanner keyboard = new Scanner(System.in);
  System.out.println("Enter the dewpoint (in Celsius)");
  double D = keyboard.nextDouble();
  System.out.println("Enter the air temperature (in Celsius)");
  double T = keyboard.nextDouble();

  //e = 6.11 * Math.exp( 5417.77530 * ( 1 / 273.16 - 1/( 273.16 + D)));
  e = 6.11 * Math.pow(Math.E,5417.77530 * ( 1 / 273.16 - 1/( 273.16 + D)));
  h = 0.5555 * (e - 10);

  //use Math.round
  humidex = Math.round( (T + h)*10.0)/10.0;

  System.out.println ("The humidex is " + humidex);

 }
}