import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double W = sc.nextInt();
		double H = sc.nextInt();      
		int x = sc.nextInt();
		int y = sc.nextInt();

      	double a = W * H / 2;
      
      	double x1 = W / 2;
      	double y1 = H / 2;
      
      	int z = x1 == x && y1 == y ? 1 : 0;

        System.out.println(a + " " + z);
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double W = sc.nextInt();
		double H = sc.nextInt();      
		int x = sc.nextInt();
		int y = sc.nextInt();

      	double a = W * H / 2;
      
      	double x1 = W / 2;
      	double y1 = H / 2;
      
      	int z = x1 == x && y1 == y ? 1 : 0;

        System.out.println(a + " " + z);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double W = sc.nextInt();
		double H = sc.nextInt();      
		int x = sc.nextInt();
		int y = sc.nextInt();

      	double a = W * H / 2;
      
      	double x1 = W / 2;
      	double y1 = H / 2;
      
      	int z = x1 == x && y1 == y ? 1 : 0;

        System.out.println(a + " " + z);
	} main {
		Scanner sc = new Scanner(System.in);
		double W = sc.nextInt();
		double H = sc.nextInt();      
		int x = sc.nextInt();
		int y = sc.nextInt();

      	double a = W * H / 2;
      
      	double x1 = W / 2;
      	double y1 = H / 2;
      
      	int z = x1 == x && y1 == y ? 1 : 0;

        System.out.println(a + " " + z);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double W = sc.nextInt(); W sc.nextInt() sc.nextInt sc double H = sc.nextInt(); H sc.nextInt() sc.nextInt sc int x = sc.nextInt(); x sc.nextInt() sc.nextInt sc int y = sc.nextInt(); y sc.nextInt() sc.nextInt sc double a = W * H / 2; a W * H / 2 W * H W H 2 double x1 = W / 2; x1 W / 2 W 2 double y1 = H / 2; y1 H / 2 H 2 int z = x1 == x && y1 == y ? 1 : 0; z x1 == x && y1 == y ? 1 : 0 x1 == x && y1 == y x1 == x x1 x y1 == y y1 y 1 0 System.out.println(a + " " + z) System.out.println System.out System System.out a + " " + z a + " " + z a " " z String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double W = sc.nextInt();
		double H = sc.nextInt();      
		int x = sc.nextInt();
		int y = sc.nextInt();

      	double a = W * H / 2;
      
      	double x1 = W / 2;
      	double y1 = H / 2;
      
      	int z = x1 == x && y1 == y ? 1 : 0;

        System.out.println(a + " " + z);
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double W = sc.nextInt();
		double H = sc.nextInt();      
		int x = sc.nextInt();
		int y = sc.nextInt();

      	double a = W * H / 2;
      
      	double x1 = W / 2;
      	double y1 = H / 2;
      
      	int z = x1 == x && y1 == y ? 1 : 0;

        System.out.println(a + " " + z);
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double W = sc.nextInt();
		double H = sc.nextInt();      
		int x = sc.nextInt();
		int y = sc.nextInt();

      	double a = W * H / 2;
      
      	double x1 = W / 2;
      	double y1 = H / 2;
      
      	int z = x1 == x && y1 == y ? 1 : 0;

        System.out.println(a + " " + z);
	}
}