input: 
  import random
  
  def generate_even_number():
      """Generate a random even number between 10 and 200 that is divisible by 5.
      >>> generate_even_number()
      10
      >>> generate_even_number()
      20
      """
      num = random.randint(10, 200)
      if num % 2 == 0:
          if num % 5 == 0:
              return num
          else:
              return generate_even_number(num+1)
      else:
          return generate_even_number(num+1)
  
output:     num = random.randint(10, 200)
      while num % 2 != 0 or num % 5 != 0:
          num = random.randint(10, 200)
      return num