def main():
    w, h, x, y = map(int,input().split())
    if x == w/2 and y == h/2:
        print(w*h/2, 1)
    else:
        print(w*h/2, 0)
    

if __name__ == "__main__":
    main() def main():
    w, h, x, y = map(int,input().split())
    if x == w/2 and y == h/2:
        print(w*h/2, 1)
    else:
        print(w*h/2, 0)
     main w, h, x, y = map(int,input().split()) w map(int,input().split()) map int input().split() ().split () input split h x y if x == w/2 and y == h/2:
        print(w*h/2, 1)
    else:
        print(w*h/2, 0)
     x == w/2 and y == h/2 x == w/2 x w/2 w 2 y == h/2 y h/2 h 2 print(w*h/2, 1) print w*h/2 w*h w h 2 1 print(w*h/2, 0) print w*h/2 w*h w h 2 0 if __name__ == "__main__":
    main() __name__ == "__main__" __name__ "__main__" main() main def main():
    w, h, x, y = map(int,input().split())
    if x == w/2 and y == h/2:
        print(w*h/2, 1)
    else:
        print(w*h/2, 0)
     def main():
    w, h, x, y = map(int,input().split())
    if x == w/2 and y == h/2:
        print(w*h/2, 1)
    else:
        print(w*h/2, 0)
     main
def main():
    w, h, x, y = map(int,input().split())
    if x == w/2 and y == h/2:
        print(w*h/2, 1)
    else:
        print(w*h/2, 0)
    

if __name__ == "__main__":
    main()
