input: Write a function to generate an even number between 10 and 200 that is divisible by 5. The function should return the generated number. If the function is unable to find such a number, it should return -1.
  assert generate_even_number() % 2 == 0
  assert generate_even_number() % 5 == 0
  assert generate_even_number() >= 10
  assert generate_even_number() <= 200
  assert generate_even_number() != -1
output: import random
  
  def generate_even_number():
      for _ in range(1000):
          num = random.randint(10, 200)
          if num % 2 == 0 and num % 5 == 0:
              return num
      return -1