import java.util.Scanner;
 
public class SpeedCalculator {
    public static void main(String[] args) {
 
        Scanner sc = new Scanner(System.in);
 
        System.out.print("Enter distance traveled (in kilometers): ");
        double distance = sc.nextDouble();
 
        System.out.print("Enter time taken (in hours): ");
        double time = sc.nextDouble();
 
        System.out.println("\n------ Speed Calculation ------");
 
        if (time <= 0) {
            System.out.println("Time must be greater than zero.");
        } else {
            double speed = distance / time;
            System.out.printf("Distance : %.2f km%n", distance);
            System.out.printf("Time     : %.2f hours%n", time);
            System.out.printf("Speed    : %.2f km/h%n", speed);
        }
 
        sc.close();
    }
}