import java.util.Scanner;
public class TriangleCalculator {

	static Scanner sc = new Scanner(System.in) ;
	public static void main(String[] args)
	{

		double base;
		double height;

		System.out.print("Enter the Triangle's base: ");
		base = sc.nextDouble();

		System.out.print("Enter the Triangle's height: ");
		height = sc.nextDouble();

		double preArea = base * height;

		double Area = preArea / 2;

		System.out.println("The area of your Triangle is: " + Area );
	}


}