import java.io.*;
import java.util.*;
public class Main {

	public static void main(String[] args) {
		InputReader in = new InputReader();
		double w = in.nextInt();
		double h = in.nextInt();
		double x = in.nextInt();
		double y = in.nextInt();
		
		int numWays = 0;
		if (x == w/2 && y == h/2)
			++numWays;
		System.out.println(w*h/2 + " " + numWays);
	}
	
	static class InputReader {
		public BufferedReader br;
		public StringTokenizer st;
		
		public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		}
		
		public String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
	}
} import java.io.*; io.* java import java.util.*; util.* java public class Main {

	public static void main(String[] args) {
		InputReader in = new InputReader();
		double w = in.nextInt();
		double h = in.nextInt();
		double x = in.nextInt();
		double y = in.nextInt();
		
		int numWays = 0;
		if (x == w/2 && y == h/2)
			++numWays;
		System.out.println(w*h/2 + " " + numWays);
	}
	
	static class InputReader {
		public BufferedReader br;
		public StringTokenizer st;
		
		public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		}
		
		public String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
	}
} Main public static void main(String[] args) {
		InputReader in = new InputReader();
		double w = in.nextInt();
		double h = in.nextInt();
		double x = in.nextInt();
		double y = in.nextInt();
		
		int numWays = 0;
		if (x == w/2 && y == h/2)
			++numWays;
		System.out.println(w*h/2 + " " + numWays);
	} main {
		InputReader in = new InputReader();
		double w = in.nextInt();
		double h = in.nextInt();
		double x = in.nextInt();
		double y = in.nextInt();
		
		int numWays = 0;
		if (x == w/2 && y == h/2)
			++numWays;
		System.out.println(w*h/2 + " " + numWays);
	} InputReader in = new InputReader(); in new InputReader() double w = in.nextInt(); w in.nextInt() in.nextInt in double h = in.nextInt(); h in.nextInt() in.nextInt in double x = in.nextInt(); x in.nextInt() in.nextInt in double y = in.nextInt(); y in.nextInt() in.nextInt in int numWays = 0; numWays 0 if (x == w/2 && y == h/2)
			++numWays; x == w/2 && y == h/2 x == w/2 x w/2 w 2 y == h/2 y h/2 h 2 ++numWays numWays System.out.println(w*h/2 + " " + numWays) System.out.println System.out System System.out w*h/2 + " " + numWays w*h/2 + " " + numWays w*h/2 w*h w h 2 " " numWays String[] args args static class InputReader {
		public BufferedReader br;
		public StringTokenizer st;
		
		public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		}
		
		public String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
	} InputReader public BufferedReader br; br public StringTokenizer st; st public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		} InputReader {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		} br = new BufferedReader(new InputStreamReader(System.in)) br new BufferedReader(new InputStreamReader(System.in)) st = null st null public String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		} next {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		} while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			} st == null || !st.hasMoreTokens() st == null st null !st.hasMoreTokens() st.hasMoreTokens() st.hasMoreTokens st {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			} try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				} catch (IOException e) {
					throw new RuntimeException(e);
				} IOException e {
					throw new RuntimeException(e);
				} throw new RuntimeException(e); new RuntimeException(e) {
					st = new StringTokenizer(br.readLine());
				} st = new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st public int nextInt() {
			return Integer.parseInt(next());
		} nextInt {
			return Integer.parseInt(next());
		} return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next public class Main {

	public static void main(String[] args) {
		InputReader in = new InputReader();
		double w = in.nextInt();
		double h = in.nextInt();
		double x = in.nextInt();
		double y = in.nextInt();
		
		int numWays = 0;
		if (x == w/2 && y == h/2)
			++numWays;
		System.out.println(w*h/2 + " " + numWays);
	}
	
	static class InputReader {
		public BufferedReader br;
		public StringTokenizer st;
		
		public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		}
		
		public String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
	}
} public class Main {

	public static void main(String[] args) {
		InputReader in = new InputReader();
		double w = in.nextInt();
		double h = in.nextInt();
		double x = in.nextInt();
		double y = in.nextInt();
		
		int numWays = 0;
		if (x == w/2 && y == h/2)
			++numWays;
		System.out.println(w*h/2 + " " + numWays);
	}
	
	static class InputReader {
		public BufferedReader br;
		public StringTokenizer st;
		
		public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		}
		
		public String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
	}
} Main
import java.io.*;
import java.util.*;
public class Main {

	public static void main(String[] args) {
		InputReader in = new InputReader();
		double w = in.nextInt();
		double h = in.nextInt();
		double x = in.nextInt();
		double y = in.nextInt();
		
		int numWays = 0;
		if (x == w/2 && y == h/2)
			++numWays;
		System.out.println(w*h/2 + " " + numWays);
	}
	
	static class InputReader {
		public BufferedReader br;
		public StringTokenizer st;
		
		public InputReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
			st = null;
		}
		
		public String next() {
			while (st == null || !st.hasMoreTokens()) {
				try {
					st = new StringTokenizer(br.readLine());
				}
				catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return st.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
	}
}
