Count the number of distinct substrings that appear in a string.

Input

The only input line has a string of length $n$ that consists of characters a–z.

Output

Print one integer: the number of substrings.

Constraints

• $1 \le n \le 10^5$

Example

Input:

abaa

Output:

8

Explanation: the substrings are a, b, aa, ab, ba, aba, baa and abaa.