input: Write a function to generate a random integer between two given input numbers (inclusive).
  import random
  
  def random_num(start, stop):
      return random.randint(start, stop)
  
  assert random_num(0, 10) in range(0, 11)
  assert random_num(5, 5) == 5
  assert random_num(100, 200) in range(100, 201)
output: 
  import random
  
  def random_num(start, stop):
      return random.randint(start, stop)
  