Minimum Insertions To Make Palindrome

easy
Question Solve Solutions 
1. You are given a string(str).
2. You have to find the minimum number of characters to be inserted to convert it to a palindrome.

Input Format

A string

Output Format

Check the sample output and question video.

Constraints

1 <= length of s1 <= 10000

Example

Input
pepperatcoding
Output
10
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