import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
	
		long ww = sc.nextLong();
		long hh = sc.nextLong();
		long xx = sc.nextLong();
		long yy = sc.nextLong();
		
		System.out.print(ww*hh/2.0);
		System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0));
		
	}
} import java.util.*; util.* java public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
	
		long ww = sc.nextLong();
		long hh = sc.nextLong();
		long xx = sc.nextLong();
		long yy = sc.nextLong();
		
		System.out.print(ww*hh/2.0);
		System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0));
		
	}
} Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
	
		long ww = sc.nextLong();
		long hh = sc.nextLong();
		long xx = sc.nextLong();
		long yy = sc.nextLong();
		
		System.out.print(ww*hh/2.0);
		System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0));
		
	} main {
		Scanner sc = new Scanner(System.in);
	
		long ww = sc.nextLong();
		long hh = sc.nextLong();
		long xx = sc.nextLong();
		long yy = sc.nextLong();
		
		System.out.print(ww*hh/2.0);
		System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0));
		
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) long ww = sc.nextLong(); ww sc.nextLong() sc.nextLong sc long hh = sc.nextLong(); hh sc.nextLong() sc.nextLong sc long xx = sc.nextLong(); xx sc.nextLong() sc.nextLong sc long yy = sc.nextLong(); yy sc.nextLong() sc.nextLong sc System.out.print(ww*hh/2.0) System.out.print System.out System System.out ww*hh/2.0 ww*hh ww hh 2.0 System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0)) System.out.print System.out System System.out " "+(xx*2==ww && yy*2==hh ? 1:0) " " (xx*2==ww && yy*2==hh ? 1:0) xx*2==ww && yy*2==hh xx*2==ww xx*2 xx 2 ww yy*2==hh yy*2 yy 2 hh 1 0 String[] args args public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
	
		long ww = sc.nextLong();
		long hh = sc.nextLong();
		long xx = sc.nextLong();
		long yy = sc.nextLong();
		
		System.out.print(ww*hh/2.0);
		System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0));
		
	}
} public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
	
		long ww = sc.nextLong();
		long hh = sc.nextLong();
		long xx = sc.nextLong();
		long yy = sc.nextLong();
		
		System.out.print(ww*hh/2.0);
		System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0));
		
	}
} Main
import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
	
		long ww = sc.nextLong();
		long hh = sc.nextLong();
		long xx = sc.nextLong();
		long yy = sc.nextLong();
		
		System.out.print(ww*hh/2.0);
		System.out.print(" "+(xx*2==ww && yy*2==hh ? 1:0));
		
	}
}