# def func1(a,b):
#     avg = (a+b)/2
#     return avg
# print(x)
# x = func1(12,43)
# multiplication function

# def func2(a,b,c,d):
#     '''This function is used to multiply numbers'''
#     mult =(a*b*c*d)
#     return mult
# x=func2(1,2,3,4)
# print(x)

# Factorial

def function(a):
    '''This function is used to get the factorial of a number'''
    factorial = 1
    while a >=1:

        factorial = factorial*a
        a-=1

    return factorial