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 Rust (1.15.1) (judge verdict: Wrong Answer)

fn main(){
    let n = input();
    let mut answer = n;
    for i in 0..3{
        answer *= n;
    }

    println!("{}",answer);
}

fn input()->u32{
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).unwrap();
    return s.trim().parse::<u32>().unwrap();
}