import java.util.Random;
import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		Random rand=new Random();
		double a=scan.nextInt();
		double b=scan.nextInt();
		int c=scan.nextInt();
		int d=scan.nextInt();
		double ansa=a*b/2;//対角線を通れば二分の一になるため(soutomokagiran)
		int ansb=0;
		if(c==a/2&&d==b/2) {
			ansb=1;
		}
		System.out.println(ansa+" "+ansb);
	}
} import java.util.Random; Random java.util import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		Random rand=new Random();
		double a=scan.nextInt();
		double b=scan.nextInt();
		int c=scan.nextInt();
		int d=scan.nextInt();
		double ansa=a*b/2;//対角線を通れば二分の一になるため(soutomokagiran)
		int ansb=0;
		if(c==a/2&&d==b/2) {
			ansb=1;
		}
		System.out.println(ansa+" "+ansb);
	}
} Main public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		Random rand=new Random();
		double a=scan.nextInt();
		double b=scan.nextInt();
		int c=scan.nextInt();
		int d=scan.nextInt();
		double ansa=a*b/2;//対角線を通れば二分の一になるため(soutomokagiran)
		int ansb=0;
		if(c==a/2&&d==b/2) {
			ansb=1;
		}
		System.out.println(ansa+" "+ansb);
	} main {
		Scanner scan=new Scanner(System.in);
		Random rand=new Random();
		double a=scan.nextInt();
		double b=scan.nextInt();
		int c=scan.nextInt();
		int d=scan.nextInt();
		double ansa=a*b/2;//対角線を通れば二分の一になるため(soutomokagiran)
		int ansb=0;
		if(c==a/2&&d==b/2) {
			ansb=1;
		}
		System.out.println(ansa+" "+ansb);
	} Scanner scan=new Scanner(System.in); scan new Scanner(System.in) Random rand=new Random(); rand new Random() double a=scan.nextInt(); a scan.nextInt() scan.nextInt scan double b=scan.nextInt(); b scan.nextInt() scan.nextInt scan int c=scan.nextInt(); c scan.nextInt() scan.nextInt scan int d=scan.nextInt(); d scan.nextInt() scan.nextInt scan double ansa=a*b/2; ansa a*b/2 a*b a b 2 int ansb=0; ansb 0 if(c==a/2&&d==b/2) {
			ansb=1;
		} c==a/2&&d==b/2 c==a/2 c a/2 a 2 d==b/2 d b/2 b 2 {
			ansb=1;
		} ansb=1 ansb 1 System.out.println(ansa+" "+ansb) System.out.println System.out System System.out ansa+" "+ansb ansa+" "+ansb ansa " " ansb String[] args args public class Main {
	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		Random rand=new Random();
		double a=scan.nextInt();
		double b=scan.nextInt();
		int c=scan.nextInt();
		int d=scan.nextInt();
		double ansa=a*b/2;//対角線を通れば二分の一になるため(soutomokagiran)
		int ansb=0;
		if(c==a/2&&d==b/2) {
			ansb=1;
		}
		System.out.println(ansa+" "+ansb);
	}
} public class Main {
	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		Random rand=new Random();
		double a=scan.nextInt();
		double b=scan.nextInt();
		int c=scan.nextInt();
		int d=scan.nextInt();
		double ansa=a*b/2;//対角線を通れば二分の一になるため(soutomokagiran)
		int ansb=0;
		if(c==a/2&&d==b/2) {
			ansb=1;
		}
		System.out.println(ansa+" "+ansb);
	}
} Main
import java.util.Random;
import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		Random rand=new Random();
		double a=scan.nextInt();
		double b=scan.nextInt();
		int c=scan.nextInt();
		int d=scan.nextInt();
		double ansa=a*b/2;//対角線を通れば二分の一になるため(soutomokagiran)
		int ansb=0;
		if(c==a/2&&d==b/2) {
			ansb=1;
		}
		System.out.println(ansa+" "+ansb);
	}
}
