Software Industry Revolution#373

Software Industry Revolution

5 seconds
64 megabytes
Very easy

Making revolutions in the software industry is not an easy task. That is why this problem is about something else. Stanescu has just invented a new, super-cool way to develop software. It is similar to writing program code, but instead of writing it, you ask someone else to do it. In this way, one could create great software without even knowing what a Turing Machine is. As you can see, this is not just a software industry revolution. In fact, Stanescu does not care about the software industry at all. He just wants to make money.

In order to protect the money he is going to make, he needs to pick a special password for his bank account, satisfying the following requirements:

You have to write a program that computes the complexity of the simplest possible password.

Input

Several test cases are given in the input. Each of them consists of a single line containing the pattern and the super-password strings, separated by a space.

Output

For each test case, your program should print a single line with one integer — the complexity of the simplest possible password. If no password satisfies the given requirements, print .

Examples

Example 1

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