import java.util.*;
public class Main{
	public static void main(String[] args){
		double ans_1 = 0;
		int ans_2 = 0;
		Scanner sc = new Scanner(System.in);
		double w = sc.nextInt();
		double h = sc.nextInt();
		double x = sc.nextInt();
		double y = sc.nextInt();

		ans_1 = w * h / 2;
		if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		}
		
		System.out.print(ans_1);
		System.out.print(" ");
		System.out.println(ans_2);
	}
} import java.util.*; util.* java public class Main{
	public static void main(String[] args){
		double ans_1 = 0;
		int ans_2 = 0;
		Scanner sc = new Scanner(System.in);
		double w = sc.nextInt();
		double h = sc.nextInt();
		double x = sc.nextInt();
		double y = sc.nextInt();

		ans_1 = w * h / 2;
		if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		}
		
		System.out.print(ans_1);
		System.out.print(" ");
		System.out.println(ans_2);
	}
} Main public static void main(String[] args){
		double ans_1 = 0;
		int ans_2 = 0;
		Scanner sc = new Scanner(System.in);
		double w = sc.nextInt();
		double h = sc.nextInt();
		double x = sc.nextInt();
		double y = sc.nextInt();

		ans_1 = w * h / 2;
		if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		}
		
		System.out.print(ans_1);
		System.out.print(" ");
		System.out.println(ans_2);
	} main {
		double ans_1 = 0;
		int ans_2 = 0;
		Scanner sc = new Scanner(System.in);
		double w = sc.nextInt();
		double h = sc.nextInt();
		double x = sc.nextInt();
		double y = sc.nextInt();

		ans_1 = w * h / 2;
		if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		}
		
		System.out.print(ans_1);
		System.out.print(" ");
		System.out.println(ans_2);
	} double ans_1 = 0; ans_1 0 int ans_2 = 0; ans_2 0 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 double x = sc.nextInt(); x sc.nextInt() sc.nextInt sc double y = sc.nextInt(); y sc.nextInt() sc.nextInt sc ans_1 = w * h / 2 ans_1 w * h / 2 w * h w h 2 if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		} w / 2 == x && h / 2 == y w / 2 == x w / 2 w 2 x h / 2 == y h / 2 h 2 y {
			ans_2 = 1;
		} ans_2 = 1 ans_2 1 {
			ans_2 = 0;
		} ans_2 = 0 ans_2 0 System.out.print(ans_1) System.out.print System.out System System.out ans_1 System.out.print(" ") System.out.print System.out System System.out " " System.out.println(ans_2) System.out.println System.out System System.out ans_2 String[] args args public class Main{
	public static void main(String[] args){
		double ans_1 = 0;
		int ans_2 = 0;
		Scanner sc = new Scanner(System.in);
		double w = sc.nextInt();
		double h = sc.nextInt();
		double x = sc.nextInt();
		double y = sc.nextInt();

		ans_1 = w * h / 2;
		if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		}
		
		System.out.print(ans_1);
		System.out.print(" ");
		System.out.println(ans_2);
	}
} public class Main{
	public static void main(String[] args){
		double ans_1 = 0;
		int ans_2 = 0;
		Scanner sc = new Scanner(System.in);
		double w = sc.nextInt();
		double h = sc.nextInt();
		double x = sc.nextInt();
		double y = sc.nextInt();

		ans_1 = w * h / 2;
		if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		}
		
		System.out.print(ans_1);
		System.out.print(" ");
		System.out.println(ans_2);
	}
} Main
import java.util.*;
public class Main{
	public static void main(String[] args){
		double ans_1 = 0;
		int ans_2 = 0;
		Scanner sc = new Scanner(System.in);
		double w = sc.nextInt();
		double h = sc.nextInt();
		double x = sc.nextInt();
		double y = sc.nextInt();

		ans_1 = w * h / 2;
		if(w / 2 == x && h / 2 == y){
			ans_2 = 1;
		}else{
			ans_2 = 0;
		}
		
		System.out.print(ans_1);
		System.out.print(" ");
		System.out.println(ans_2);
	}
}
