import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.TreeSet;

import static java.util.Arrays.binarySearch;

public class Main {

    public static void main(String[] args) throws Exception {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;

        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);

        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }
}

class Task {

    public void solve(int testNumber, InputReader in, PrintWriter out) {
        long w = in.nextLong();
        long h = in.nextLong();
        long x = in.nextLong();
        long y = in.nextLong();
        out.println(w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0));
    }

}

class InputReader {

    private final BufferedReader reader;
    private StringTokenizer tokenizer;

    public InputReader(InputStream stream) {
        reader = new BufferedReader(new InputStreamReader(stream));
        tokenizer = null;
    }

    public String nextLine() {
        try {
            return reader.readLine();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public String next() {
        while (tokenizer == null || !tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(nextLine());
        }
        return tokenizer.nextToken();
    }

    public int nextInt() {
        return Integer.parseInt(next());
    }

    public long nextLong() {
        return Long.parseLong(next());
    }

    public double nextDouble() {
        return Double.parseDouble(next());
    }

} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.InputStreamReader; InputStreamReader java.io import java.io.OutputStream; OutputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Arrays; Arrays java.util import java.util.Collections; Collections java.util import java.util.Comparator; Comparator java.util import java.util.Map; Map java.util import java.util.StringTokenizer; StringTokenizer java.util import java.util.TreeSet; TreeSet java.util import static java.util.Arrays.binarySearch; import static java.util.Arrays.binarySearch; import static java.util.Arrays.binarySearch; public class Main {

    public static void main(String[] args) throws Exception {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;

        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);

        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }
} Main public static void main(String[] args) throws Exception {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;

        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);

        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;

        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);

        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out InputReader in = new InputReader(inputStream); in new InputReader(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) Task solver = new Task(); solver new Task() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args class Task {

    public void solve(int testNumber, InputReader in, PrintWriter out) {
        long w = in.nextLong();
        long h = in.nextLong();
        long x = in.nextLong();
        long y = in.nextLong();
        out.println(w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0));
    }

} Task public void solve(int testNumber, InputReader in, PrintWriter out) {
        long w = in.nextLong();
        long h = in.nextLong();
        long x = in.nextLong();
        long y = in.nextLong();
        out.println(w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0));
    } solve {
        long w = in.nextLong();
        long h = in.nextLong();
        long x = in.nextLong();
        long y = in.nextLong();
        out.println(w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0));
    } long w = in.nextLong(); w in.nextLong() in.nextLong in long h = in.nextLong(); h in.nextLong() in.nextLong in long x = in.nextLong(); x in.nextLong() in.nextLong in long y = in.nextLong(); y in.nextLong() in.nextLong in out.println(w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0)) out.println out w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0) w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0) w * h / 2.0 w * h w h 2.0 " " (((2 * x == w) && (2 * y == h)) ? 1 : 0) ((2 * x == w) && (2 * y == h)) (2 * x == w) 2 * x 2 x w (2 * y == h) 2 * y 2 y h 1 0 int testNumber testNumber InputReader in in PrintWriter out out class InputReader {

    private final BufferedReader reader;
    private StringTokenizer tokenizer;

    public InputReader(InputStream stream) {
        reader = new BufferedReader(new InputStreamReader(stream));
        tokenizer = null;
    }

    public String nextLine() {
        try {
            return reader.readLine();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public String next() {
        while (tokenizer == null || !tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(nextLine());
        }
        return tokenizer.nextToken();
    }

    public int nextInt() {
        return Integer.parseInt(next());
    }

    public long nextLong() {
        return Long.parseLong(next());
    }

    public double nextDouble() {
        return Double.parseDouble(next());
    }

} InputReader private final BufferedReader reader; reader private StringTokenizer tokenizer; tokenizer public InputReader(InputStream stream) {
        reader = new BufferedReader(new InputStreamReader(stream));
        tokenizer = null;
    } InputReader {
        reader = new BufferedReader(new InputStreamReader(stream));
        tokenizer = null;
    } reader = new BufferedReader(new InputStreamReader(stream)) reader new BufferedReader(new InputStreamReader(stream)) tokenizer = null tokenizer null InputStream stream stream public String nextLine() {
        try {
            return reader.readLine();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    } nextLine {
        try {
            return reader.readLine();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    } try {
            return reader.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) {
            return reader.readLine();
        } return reader.readLine(); reader.readLine() reader.readLine reader public String next() {
        while (tokenizer == null || !tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(nextLine());
        }
        return tokenizer.nextToken();
    } next {
        while (tokenizer == null || !tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(nextLine());
        }
        return tokenizer.nextToken();
    } while (tokenizer == null || !tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(nextLine());
        } tokenizer == null || !tokenizer.hasMoreTokens() tokenizer == null tokenizer null !tokenizer.hasMoreTokens() tokenizer.hasMoreTokens() tokenizer.hasMoreTokens tokenizer {
            tokenizer = new StringTokenizer(nextLine());
        } tokenizer = new StringTokenizer(nextLine()) tokenizer new StringTokenizer(nextLine()) return tokenizer.nextToken(); tokenizer.nextToken() tokenizer.nextToken tokenizer 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 long nextLong() {
        return Long.parseLong(next());
    } nextLong {
        return Long.parseLong(next());
    } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next public double nextDouble() {
        return Double.parseDouble(next());
    } nextDouble {
        return Double.parseDouble(next());
    } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next public class Main {

    public static void main(String[] args) throws Exception {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;

        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);

        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }
} public class Main {

    public static void main(String[] args) throws Exception {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;

        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);

        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }
} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.TreeSet;

import static java.util.Arrays.binarySearch;

public class Main {

    public static void main(String[] args) throws Exception {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;

        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);

        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }
}

class Task {

    public void solve(int testNumber, InputReader in, PrintWriter out) {
        long w = in.nextLong();
        long h = in.nextLong();
        long x = in.nextLong();
        long y = in.nextLong();
        out.println(w * h / 2.0 + " " + (((2 * x == w) && (2 * y == h)) ? 1 : 0));
    }

}

class InputReader {

    private final BufferedReader reader;
    private StringTokenizer tokenizer;

    public InputReader(InputStream stream) {
        reader = new BufferedReader(new InputStreamReader(stream));
        tokenizer = null;
    }

    public String nextLine() {
        try {
            return reader.readLine();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public String next() {
        while (tokenizer == null || !tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(nextLine());
        }
        return tokenizer.nextToken();
    }

    public int nextInt() {
        return Integer.parseInt(next());
    }

    public long nextLong() {
        return Long.parseLong(next());
    }

    public double nextDouble() {
        return Double.parseDouble(next());
    }

}
