import java.util.*;

public class Main {

    public static void main(String[] args) {
        // write your code here
        Scanner sc = new Scanner(System.in);

        long w = sc.nextLong();
        long h = sc.nextLong();
        long x = sc.nextLong();
        long y = sc.nextLong();

        double ans = 0.5 * w * h;

        StringBuilder builder = new StringBuilder(String.valueOf(ans));
        int flag = 0.5 * w == x && 0.5 * h == y ? 1 : 0;
        builder.append(" " + flag);

        System.out.println(builder);
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz