Score : $100$ points

Problem Statement

You are given a string $S$ of length $3$ consisting of lowercase English letters.

How many different strings can be obtained by permuting the characters in $S$?

Constraints

• $S$ is a string $S$ of length $3$ consisting of lowercase English letters.

Input

Input is given from Standard Input in the following format:

$S$

Output

Print the number of different strings that can be obtained by permuting the characters in $S$.

aba

3

By permuting the characters in $S=$ aba, three different strings can be obtained: aab, aba, baa.

ccc

1

By permuting the characters in $S=$ ccc, just one string can be obtained: ccc.

xyz

6

By permuting the characters in $S=$ xyz, six different strings can be obtained: xyz, xzy, yxz, yzx, zxy, zyx.