Problem:
X Cubic

Write a program which calculates the cube of a given integer x.

Input

An integer x is given in a line.

Output

Print the cube of x in a line.

Constraints

1 ≤ x ≤ 100

Sample Input 1

2

Sample Output 1

8

Sample Input 2

3

Sample Output 2

27

Solution in PHP (judge verdict: Wrong Answer)

<?php
function xCubic($x)
{
    if(1<=$x && $x<=100){
        return $x*$x*$x;
    }
}
?>