# Write a Python program to find missing and additional values in two lists.  
list1 = ['a','b','c','d','e','f']
list2 = ['d','e','f','g','h']
print('Missing values in second list: ', ','.join(set(list1).difference(list2)))
print('Additional values in second list: ', ','.join(set(list2).difference(list1)))
