import java.util.Scanner;

public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double w = sc.nextDouble(),h = sc.nextDouble();
		double x = sc.nextDouble(),y = sc.nextDouble();
		if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		}
	}
	
} 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.nextDouble(),h = sc.nextDouble();
		double x = sc.nextDouble(),y = sc.nextDouble();
		if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		}
	}
	
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double w = sc.nextDouble(),h = sc.nextDouble();
		double x = sc.nextDouble(),y = sc.nextDouble();
		if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		}
	} main {
		Scanner sc = new Scanner(System.in);
		double w = sc.nextDouble(),h = sc.nextDouble();
		double x = sc.nextDouble(),y = sc.nextDouble();
		if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		}
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double w = sc.nextDouble() w sc.nextDouble() sc.nextDouble sc h = sc.nextDouble(); h sc.nextDouble() sc.nextDouble sc double x = sc.nextDouble() x sc.nextDouble() sc.nextDouble sc y = sc.nextDouble(); y sc.nextDouble() sc.nextDouble sc if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		} x == w / 2 && y == h / 2 x == w / 2 x w / 2 w 2 y == h / 2 y h / 2 h 2 {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		} System.out.print((w*h)/2+" ") System.out.print System.out System System.out (w*h)/2+" " (w*h)/2 (w*h) w h 2 " " System.out.println(1) System.out.println System.out System System.out 1 {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		} System.out.print((w*h)/2+" ") System.out.print System.out System System.out (w*h)/2+" " (w*h)/2 (w*h) w h 2 " " System.out.println(0) System.out.println System.out System System.out 0 String[] args args public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double w = sc.nextDouble(),h = sc.nextDouble();
		double x = sc.nextDouble(),y = sc.nextDouble();
		if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		}
	}
	
} public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double w = sc.nextDouble(),h = sc.nextDouble();
		double x = sc.nextDouble(),y = sc.nextDouble();
		if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		}
	}
	
} Main
import java.util.Scanner;

public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double w = sc.nextDouble(),h = sc.nextDouble();
		double x = sc.nextDouble(),y = sc.nextDouble();
		if(x == w / 2 && y == h / 2) {
			System.out.print((w*h)/2+" ");
			System.out.println(1);
		}else {
			System.out.print((w*h)/2+" ");
			System.out.println(0);
		}
	}
	
}