import java.util.*;
class Main{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        double w = scanner.nextDouble();
        double h = scanner.nextDouble();
        double x = scanner.nextDouble();
        double y = scanner.nextDouble();

        int count = 0;
        if(w/2 == x && h/2 == y){count++;}
        System.out.println((w*h/2.0) + " " + count);
        
    }
}


/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