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Contest: Task: Related: TaskB

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 $S$.

Sample Input 1

aba

Sample Output 1

3

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

Sample Input 2

ccc

Sample Output 2

1

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

Sample Input 3

xyz

Sample Output 3

6

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