print("Welcome to limited arithmetic")
print("Today we will addd, deevide, subtract, and mulchiply")
calculations = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
fourth_wall = input("Please select a number to perform math: ")
fifths_wall = input("Please select a second number to perform math: ")
calculations.append(fourth_wall)
calculations.append(fifths_wall)
print("here's your updated calculator: ", calculations)
print("")
sum = float(fourth_wall) + float(fifths_wall)
differece = float(fourth_wall) - float(fifths_wall)
differece2 = float(fifths_wall) - float(fourth_wall)
sum2 = float(fifths_wall) + float(fourth_wall)
product1 = float(fourth_wall) * float(fifths_wall)
product2 = float(fifths_wall) * float(fourth_wall)
divijion = float(fifths_wall) / float(fourth_wall)
division2 = float(fourth_wall) / float(fifths_wall)
print("This is the additions: ", sum, sum2)
print("This is the subtractions: ", differece, differece2)
print("This is the products: ", product1, product2)
print("This is the devisions: ", divijion, division2)

print("Thank you for using my calculator!")
print("return 0;")