
#This is a simple program to calculate factorial of a program
a=eval(input())
def factorial(number):
    if number <=1:
        return 1
    else:
        return number*factorial(number-1)
print(factorial(a))


fbc386ae0895c686f0469811e750cb06dd908623
<mask token>

<mask token>


def factorial(number):
    if number <= 1:
        return 1
    else:
        return number * factorial(number - 1)


<mask token>

<mask token>


def factorial(number):
    if number <= 1:
        return 1
    else:
        return number * factorial(number - 1)


print(factorial(a))

a = eval(input())


def factorial(number):
    if number <= 1:
        return 1
    else:
        return number * factorial(number - 1)


print(factorial(a))


#This is a simple program to calculate factorial of a program
a=eval(input())
def factorial(number):
    if number <=1:
        return 1
    else:
        return number*factorial(number-1)
print(factorial(a))

