shift-left-1

Shift Left

You are given two strings. In a single move, you can choose any of them, and delete the first (i.e. leftmost) character.

For Example:

• By applying a move to the string "where", the result is the string "here".
• By applying a move to the string "a", the result is an empty string "".

Implement a function that calculates the minimum number of moves that should be performed to make the given strings equal.

Notes

• Both strings consist of lowercase latin letters.
• If the string is already empty, you cannot perform any more delete operations.