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)

def main
  puts cubic(read_num())
end

def read_num
  line = STDIN.readline
  Integer(line.chomp)
end

def cubic(num)
  num * num * num
end

if __FILE__ == $0
  main
end