Problem:
Score : 100 points

Problem Statement

Takahashi is going to set a 3-character password.

How many possible passwords are there if each of its characters must be a digit between 1 and N (inclusive)?

Constraints

1 \leq N \leq 9

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

Print the number of possible passwords.

Sample Input 1

2

Sample Output 1

8

There are eight possible passwords: 111, 112, 121, 122, 211, 212, 221, and 222.

Sample Input 2

1

Sample Output 2

1

There is only one possible password if you can only use one kind of character.

Solution in PHP7 (7.0.15) (judge verdict: Accepted)

<?php                                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                                               
function fget_array() {                                                                                                                                                                                                                                                                                                        
    return explode(' ', trim(fgets(STDIN)));                                                                                                                                                                                                                                                                                   
}                                                                                                                                                                                                                                                                                                                              
                                                                                                                                                                                                                                                                                                                               
$n = fget_array()[0];                                                                                                                                                                                                                                                                                                          
echo pow($n, 3);                                                                                                                                                                                                                                                                                                               
?>