Minimum string moves
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We have two strings A and B which are permutations of the same set of characters. We need to change these strings to obtain two identical strings by performing the following operations:
1) swap two consecutive characters of a string
2) swap the first and the last characters of a string
The operation can be performed on either string. Return the minimum number of moves that we need in order to obtain two equal strings?
Constraints
1 < length(A) = length(B) ≤ 2,000
All the input characters are between 'a' and 'z'
The count of each distinct character in A is identical to the count of the same character in B.
Input
First line: String A.
Second line: String B.
Output
Minimum number of moves.
Example
Input: aab
baa</p>Output: 1