import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.math.BigDecimal;
import java.util.StringTokenizer;
public class Main {
	public static void main(String[] args){
		FastScanner sc = new FastScanner(System.in);
		long w = sc.nextInt();
		long h = sc.nextInt();
		long x = sc.nextInt();
		long y = sc.nextInt();
		int out = 0;

		if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		}

		double s = w * h / 2.0;
		System.out.print(BigDecimal.valueOf(s).toPlainString());
		System.out.print(" ");
		System.out.print(out);


	}

}

class FastScanner {
    private BufferedReader reader = null;
    private StringTokenizer tokenizer = null;

    public FastScanner(InputStream in) {
        reader = new BufferedReader(new InputStreamReader(in));
        tokenizer = null;
    }

    public String next() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    }

    public String nextLine() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

        return tokenizer.nextToken("\n");
    }

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

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

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

    public int[] nextIntArray(int n) {
        int[] a = new int[n];
        for (int i = 0; i < n; i++)
            a[i] = nextInt();
        return a;
    }

    public long[] nextLongArray(int n) {
        long[] a = new long[n];
        for (int i = 0; i < n; i++)
            a[i] = nextLong();
        return a;
    }
} 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.math.BigDecimal; BigDecimal java.math import java.util.StringTokenizer; StringTokenizer java.util public class Main {
	public static void main(String[] args){
		FastScanner sc = new FastScanner(System.in);
		long w = sc.nextInt();
		long h = sc.nextInt();
		long x = sc.nextInt();
		long y = sc.nextInt();
		int out = 0;

		if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		}

		double s = w * h / 2.0;
		System.out.print(BigDecimal.valueOf(s).toPlainString());
		System.out.print(" ");
		System.out.print(out);


	}

} Main public static void main(String[] args){
		FastScanner sc = new FastScanner(System.in);
		long w = sc.nextInt();
		long h = sc.nextInt();
		long x = sc.nextInt();
		long y = sc.nextInt();
		int out = 0;

		if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		}

		double s = w * h / 2.0;
		System.out.print(BigDecimal.valueOf(s).toPlainString());
		System.out.print(" ");
		System.out.print(out);


	} main {
		FastScanner sc = new FastScanner(System.in);
		long w = sc.nextInt();
		long h = sc.nextInt();
		long x = sc.nextInt();
		long y = sc.nextInt();
		int out = 0;

		if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		}

		double s = w * h / 2.0;
		System.out.print(BigDecimal.valueOf(s).toPlainString());
		System.out.print(" ");
		System.out.print(out);


	} FastScanner sc = new FastScanner(System.in); sc new FastScanner(System.in) long w = sc.nextInt(); w sc.nextInt() sc.nextInt sc long h = sc.nextInt(); h sc.nextInt() sc.nextInt sc long x = sc.nextInt(); x sc.nextInt() sc.nextInt sc long y = sc.nextInt(); y sc.nextInt() sc.nextInt sc int out = 0; out 0 if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		} w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h x*2 == w w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h w%2 == 0 w%2 w 2 0 h%2 == 0 h%2 h 2 0 x*2 == w x*2 x 2 w y*2 == h y*2 y 2 h {
			out = 1;
		} out = 1 out 1 double s = w * h / 2.0; s w * h / 2.0 w * h w h 2.0 System.out.print(BigDecimal.valueOf(s).toPlainString()) System.out.print System.out System System.out BigDecimal.valueOf(s).toPlainString() BigDecimal.valueOf(s).toPlainString BigDecimal.valueOf(s) BigDecimal.valueOf BigDecimal s System.out.print(" ") System.out.print System.out System System.out " " System.out.print(out) System.out.print System.out System System.out out String[] args args class FastScanner {
    private BufferedReader reader = null;
    private StringTokenizer tokenizer = null;

    public FastScanner(InputStream in) {
        reader = new BufferedReader(new InputStreamReader(in));
        tokenizer = null;
    }

    public String next() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    }

    public String nextLine() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

        return tokenizer.nextToken("\n");
    }

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

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

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

    public int[] nextIntArray(int n) {
        int[] a = new int[n];
        for (int i = 0; i < n; i++)
            a[i] = nextInt();
        return a;
    }

    public long[] nextLongArray(int n) {
        long[] a = new long[n];
        for (int i = 0; i < n; i++)
            a[i] = nextLong();
        return a;
    }
} FastScanner private BufferedReader reader = null; reader null private StringTokenizer tokenizer = null; tokenizer null public FastScanner(InputStream in) {
        reader = new BufferedReader(new InputStreamReader(in));
        tokenizer = null;
    } FastScanner {
        reader = new BufferedReader(new InputStreamReader(in));
        tokenizer = null;
    } reader = new BufferedReader(new InputStreamReader(in)) reader new BufferedReader(new InputStreamReader(in)) tokenizer = null tokenizer null InputStream in in public String next() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    } next {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    } if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        } tokenizer == null || !tokenizer.hasMoreTokens() tokenizer == null tokenizer null !tokenizer.hasMoreTokens() tokenizer.hasMoreTokens() tokenizer.hasMoreTokens tokenizer {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        } try {
                tokenizer = new StringTokenizer(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) {
                tokenizer = new StringTokenizer(reader.readLine());
            } tokenizer = new StringTokenizer(reader.readLine()) tokenizer new StringTokenizer(reader.readLine()) return tokenizer.nextToken(); tokenizer.nextToken() tokenizer.nextToken tokenizer public String nextLine() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

        return tokenizer.nextToken("\n");
    } nextLine {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

        return tokenizer.nextToken("\n");
    } if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        } tokenizer == null || !tokenizer.hasMoreTokens() tokenizer == null tokenizer null !tokenizer.hasMoreTokens() tokenizer.hasMoreTokens() tokenizer.hasMoreTokens tokenizer {
            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 return tokenizer.nextToken("\n"); tokenizer.nextToken("\n") tokenizer.nextToken tokenizer "\n" 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 int nextInt() {
        return Integer.parseInt(next());
    } nextInt {
        return Integer.parseInt(next());
    } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer 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 int[] nextIntArray(int n) {
        int[] a = new int[n];
        for (int i = 0; i < n; i++)
            a[i] = nextInt();
        return a;
    } nextIntArray {
        int[] a = new int[n];
        for (int i = 0; i < n; i++)
            a[i] = nextInt();
        return a;
    } int[] a = new int[n]; a new int[n] n for (int i = 0; i < n; i++)
            a[i] = nextInt(); int i = 0; int i = 0; i 0 i < n i n i++ i++ i a[i] = nextInt(); a[i] = nextInt() a[i] a i nextInt() nextInt return a; a int n n public long[] nextLongArray(int n) {
        long[] a = new long[n];
        for (int i = 0; i < n; i++)
            a[i] = nextLong();
        return a;
    } nextLongArray {
        long[] a = new long[n];
        for (int i = 0; i < n; i++)
            a[i] = nextLong();
        return a;
    } long[] a = new long[n]; a new long[n] n for (int i = 0; i < n; i++)
            a[i] = nextLong(); int i = 0; int i = 0; i 0 i < n i n i++ i++ i a[i] = nextLong(); a[i] = nextLong() a[i] a i nextLong() nextLong return a; a int n n public class Main {
	public static void main(String[] args){
		FastScanner sc = new FastScanner(System.in);
		long w = sc.nextInt();
		long h = sc.nextInt();
		long x = sc.nextInt();
		long y = sc.nextInt();
		int out = 0;

		if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		}

		double s = w * h / 2.0;
		System.out.print(BigDecimal.valueOf(s).toPlainString());
		System.out.print(" ");
		System.out.print(out);


	}

} public class Main {
	public static void main(String[] args){
		FastScanner sc = new FastScanner(System.in);
		long w = sc.nextInt();
		long h = sc.nextInt();
		long x = sc.nextInt();
		long y = sc.nextInt();
		int out = 0;

		if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		}

		double s = w * h / 2.0;
		System.out.print(BigDecimal.valueOf(s).toPlainString());
		System.out.print(" ");
		System.out.print(out);


	}

} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.math.BigDecimal;
import java.util.StringTokenizer;
public class Main {
	public static void main(String[] args){
		FastScanner sc = new FastScanner(System.in);
		long w = sc.nextInt();
		long h = sc.nextInt();
		long x = sc.nextInt();
		long y = sc.nextInt();
		int out = 0;

		if (w%2 == 0 && h%2 == 0 && x*2 == w && y*2 == h ) {
			out = 1;
		}

		double s = w * h / 2.0;
		System.out.print(BigDecimal.valueOf(s).toPlainString());
		System.out.print(" ");
		System.out.print(out);


	}

}

class FastScanner {
    private BufferedReader reader = null;
    private StringTokenizer tokenizer = null;

    public FastScanner(InputStream in) {
        reader = new BufferedReader(new InputStreamReader(in));
        tokenizer = null;
    }

    public String next() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    }

    public String nextLine() {
        if (tokenizer == null || !tokenizer.hasMoreTokens()) {
            try {
                return reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

        return tokenizer.nextToken("\n");
    }

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

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

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

    public int[] nextIntArray(int n) {
        int[] a = new int[n];
        for (int i = 0; i < n; i++)
            a[i] = nextInt();
        return a;
    }

    public long[] nextLongArray(int n) {
        long[] a = new long[n];
        for (int i = 0; i < n; i++)
            a[i] = nextLong();
        return a;
    }
}