Design a circuit with output f and inputs x1, x0, y1, and y0. Let X = x1x0 and Y

Complete question

The complete question is shown on the first uploaded image

a The table is shown on the second uploaded image

b The simplest possible sum product is shown on the fifth uploaded image

Explanation:

The explanation is shown on the third fourth and fifth uploaded image

# the user is prompted for input

user_input = int(input("Enter your number: "))

# if the user_input is negative

# it assigns None to numItemsPointer

# and display None

if(user_input < 0):

   numItemsPointer = None

   print(numItemsPointer)

# if the user_input is positive

# it assigns to numItemsPointer

# the product of the user_input and 10

else:

   numItemsPointer = user_input * 10

   print(numItemsPointer)

Explanation:

The program is written in Python and it is well commented. The python equivalent of null is None. A sample image output is attached.