# Play hockey this...

Very easy

Execution time limit is 0.18 seconds

Runtime memory usage limit is 22.888 megabytes

Forest residents have decided to hold a hockey tournament between the N teams. How many ways can be distributed sets of gold, silver and bronze medals, if one prize may take only one team?

## Input

In a single line located a unique natural number N, does not exceed 100.

## Output

Single number - the required number of ways.

## Examples

Input #1

Answer #1

Submissions 9K

Acceptance rate 30%