input: Below is an instruction that describes a task. Write a response that appropriately completes the request.
  
  ### Instruction:
  Create a Python program to calculate the square root of a user-defined positive number.
  
  ### Input:
  n = 100
  
  ### Output:
  import math
  
  n = 100
  
  #Calculate the square root of a number
  square_root = math.sqrt(n)
  
  print(f'Square root of {n} is {square_root}')
  
  def calculate_square_root(n: int) -> float:
      """Calculate the square root of a user-defined positive number.
      >>> calculate_square_root(100)
      10.0
      >>> calculate_square_root(25)
      5.0
      """
output:     return math.sqrt(n)