"""
Given strings s1 and s2, we need to transform s1 into s2 by deleting and inserting characters. Write a function to calculate 
the count of the minimum number of deletion and insertion operations.

Input: s1 = "abc"
       s2 = "fbc"
Output: 1 deletion and 1 insertion.
Explanation: We need to delete {'a'} and insert {'f'} to s1 to transform it into s2.

    a b c
    1 2 3 
f 1 
b 2 
c 3

"""