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: WA: Presentation Error)

<?php
$base = trim(fgets(STDIN));
$h = new Power();
$exp = 3;
$h->output($base,$exp); // 3???

class Power {
    
    public function output($base, $exp)
    {
        echo pow($base, $exp);
    }
}