Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 3瓣大蒜可以驱赶2个吸血鬼，8只吸血蝙蝠或3个尸妖。需要多少瓣大蒜才能驱赶30个吸血鬼，12个尸妖和40只吸血蝙蝠？


### Response:
 首先找出驱赶吸血鬼所需的总大蒜瓣数：30个吸血鬼 * 3瓣大蒜 / 2个吸血鬼 = 45瓣大蒜
然后找出驱赶尸妖所需的总大蒜瓣数：12个尸妖 * 3瓣大蒜 / 3个尸妖 = <<12*3/3=12>>12瓣大蒜
然后找出驱赶吸血蝙蝠所需的总大蒜瓣数：40只吸血蝙蝠 * 3瓣大蒜 / 8只吸血蝙蝠 = <<40*3/8=15>>15瓣大蒜
然后将这三个数量相加，得到总共需要的大蒜瓣数：45瓣大蒜 + 12瓣大蒜 + 15瓣大蒜 = <<45+12+15=72>>72瓣大蒜