#WSQ09 - Factorial calculator

#DEFINE THE FACTORIAL
def factorial (n):
    x = n
    y = 1
#WHEN THE GIVEN NUMBER IS POSITIVE
    while (x > 1):
        y = y * x
        x = x -1
    return y
a = "y"
#START OF THE LOOP
while (a == "y"):
    n = int(input("Type a positive integer"))
    f = factorial(n)

#DIFFERENT RESPONSES IF IT IS WRONG OR NOT
    if (n < 0):
        print("it must be positive")
    else:
        print("The factorial of", n, "is", f)
        a = input("Try again? y/n")