def my_fun(x, y):
return (x**2 - y**2)/2*x*y
x = [i for i in range(1,9)]
y = [i/5 for i in range(1, 9)]
print(list(map(my_fun, x, y)))
ZGVmIG15X2Z1bih4LCB5KToKICAgIAlyZXR1cm4gKHgqKjIgLSB5KioyKS8yKngqeQoKeCA9IFtpIGZvciBpIGluIHJhbmdlKDEsOSldCnkgPSBbaS81IGZvciBpIGluIHJhbmdlKDEsIDkpXQoKcHJpbnQobGlzdChtYXAobXlfZnVuLCB4LCB5KSkp