#Create a function that returns the median of a list of numbers
def median(list_of_numbers):
 
#Make a copy of list_of_numbers and sort the new list
    lst = list_of_numbers
    lst = sorted(lst)
 
#Get the length of list and use it to index through the list
    lst_length = len(lst)
    index = int(lst_length/2)
 
#If length if even, average the two middle numbers
    if lst_length%2==0:
        a=  lst[index-1]
        b = lst[index]
        result = (a+b)/2
 
#If length is odd, return the middle number
    else:
        result = lst[index]
    return result
 
print (median([4, 5, 5, 4]))

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