def makeAnagram(a, b):
    # Write your code here
    a_list = list(a)
    b_list = list(b)
    remove_b = 0
    for l in b_list: 
        if l in a_list: 
            a_list.remove(l)
        else:
            remove_b +=1 
    remove_a = len(a_list) # unmatched letters remained in this list
    return remove_a + remove_b