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 Ruby (judge verdict: Accepted)

num = gets.chomp.to_i
res = nil
2.times do |i|
  if i == 0
    res = num * num
  else
    res = num * res
  end
end
puts res