import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    double w = Integer.parseInt(sc.next());
    double h = Integer.parseInt(sc.next());
    double x = Integer.parseInt(sc.next());
    double y = Integer.parseInt(sc.next());
    int ans;
    int cnt = 0;

	Double s = w*h*0.5d;

    if (w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2) {
      ans = 1;
    } else {
      ans = 0;
    }
    
    System.out.println(s + " " + ans);
  }
} import java.util.*; util.* java class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    double w = Integer.parseInt(sc.next());
    double h = Integer.parseInt(sc.next());
    double x = Integer.parseInt(sc.next());
    double y = Integer.parseInt(sc.next());
    int ans;
    int cnt = 0;

	Double s = w*h*0.5d;

    if (w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2) {
      ans = 1;
    } else {
      ans = 0;
    }
    
    System.out.println(s + " " + ans);
  }
} Main public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    double w = Integer.parseInt(sc.next());
    double h = Integer.parseInt(sc.next());
    double x = Integer.parseInt(sc.next());
    double y = Integer.parseInt(sc.next());
    int ans;
    int cnt = 0;

	Double s = w*h*0.5d;

    if (w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2) {
      ans = 1;
    } else {
      ans = 0;
    }
    
    System.out.println(s + " " + ans);
  } main {
    Scanner sc = new Scanner(System.in);
    double w = Integer.parseInt(sc.next());
    double h = Integer.parseInt(sc.next());
    double x = Integer.parseInt(sc.next());
    double y = Integer.parseInt(sc.next());
    int ans;
    int cnt = 0;

	Double s = w*h*0.5d;

    if (w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2) {
      ans = 1;
    } else {
      ans = 0;
    }
    
    System.out.println(s + " " + ans);
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double w = Integer.parseInt(sc.next()); w Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc double h = Integer.parseInt(sc.next()); h Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc double x = Integer.parseInt(sc.next()); x Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc double y = Integer.parseInt(sc.next()); y Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int ans; ans int cnt = 0; cnt 0 Double s = w*h*0.5d; s w*h*0.5d w*h*0.5d w h 0.5d if (w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2) {
      ans = 1;
    } else {
      ans = 0;
    } w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2 x == w/2 w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2 w%2 == 0 w%2 w 2 0 h%2 == 0 h%2 h 2 0 x == w/2 x w/2 w 2 y == h/2 y h/2 h 2 {
      ans = 1;
    } ans = 1 ans 1 {
      ans = 0;
    } ans = 0 ans 0 System.out.println(s + " " + ans) System.out.println System.out System System.out s + " " + ans s + " " + ans s " " ans String[] args args
import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    double w = Integer.parseInt(sc.next());
    double h = Integer.parseInt(sc.next());
    double x = Integer.parseInt(sc.next());
    double y = Integer.parseInt(sc.next());
    int ans;
    int cnt = 0;

	Double s = w*h*0.5d;

    if (w%2 == 0 && h%2 == 0 && x == w/2 && y == h/2) {
      ans = 1;
    } else {
      ans = 0;
    }
    
    System.out.println(s + " " + ans);
  }
}
