def factorial_calculator(number):
    result = 1
    for num in range(1, number + 1):
        result *= num
    return result


num1 = int(input())
num2 = int(input())
fact_num1 = factorial_calculator(num1)
fact_num2 = factorial_calculator(num2)
final_result = fact_num1 / fact_num2
print(f'{final_result:.2f}')

26b892ea8cf328cb93db5e1e3f8a0664f1a9218c
<mask token>

def factorial_calculator(number):
    result = 1
    for num in range(1, number + 1):
        result *= num
    return result


<mask token>

def factorial_calculator(number):
    result = 1
    for num in range(1, number + 1):
        result *= num
    return result


<mask token>
print(f'{final_result:.2f}')

def factorial_calculator(number):
    result = 1
    for num in range(1, number + 1):
        result *= num
    return result


num1 = int(input())
num2 = int(input())
fact_num1 = factorial_calculator(num1)
fact_num2 = factorial_calculator(num2)
final_result = fact_num1 / fact_num2
print(f'{final_result:.2f}')
