J. Two Prefixes
time limit per test
1 second
memory limit per test
512 megabytes
input
standard input
output
standard output

Misha didn't do his math homework for today's lesson once again. As a punishment, his teacher Dr. Andrew decided to give him a hard, but very useless task.

Dr. Andrew has written two strings s and t of lowercase English letters at the blackboard. He reminded Misha that prefix of a string is a string formed by removing several (possibly none) of its last characters, and a concatenation of two strings is a string formed by appending the second string to the right of the first string.

The teacher asked Misha to write down on the blackboard all strings that are the concatenations of some non-empty prefix of s and some non-empty prefix of t. When Misha did it, Dr. Andrew asked him how many distinct strings are there. Misha spent almost the entire lesson doing that and completed the task.

Now he asks you to write a program that would do this task automatically.

Input

The first line contains the string s consisting of lowercase English letters. The second line contains the string t consisting of lowercase English letters.

The lengths of both string do not exceed 105.

Output

Output a single integer — the number of distinct strings that are concatenations of some non-empty prefix of s with some non-empty prefix of t.

Examples
Input
abaaa
Output
5
Input
aaaaaaaaa
Output
8
Note

In the first example, the string s has three non-empty prefixes: {a, ab, aba}. The string t has two non-empty prefixes: {a, aa}. In total, Misha has written five distinct strings: {aa, aaa, aba, abaa, abaaa}. The string abaa has been written twice.

In the second example, Misha has written eight distinct strings: {aa, aaa, aaaa, aaaaa, aaaaaa, aaaaaaa, aaaaaaaa, aaaaaaaaa}.