koodi

def add(x, y):
    return x + y
def subtract(x, y):
    return x - y
mylist = []
while True:
    print("Do you want to add or subtract? If you want to exit type exit.")
    choice = input("Enter choice(add/subtract): ")

    if choice == 'exit':
        break

    num1 = float(input("Enter first value: "))
    num2 = float(input("Enter second value: "))

    if choice == 'add':
        print(add(num1,num2))
        mylist.append("")

    elif choice == 'subtract':
        print(subtract(num1,num2))
        mylist.append("")

    else:
        print("Please only select add or subtract")

    continue