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

### Instruction:
 罗素和詹妮去了马戏团。詹妮玩了两次射击游戏，而罗素骑了三次旋转木马。射击游戏需要5张门票，旋转木马需要3张门票。他们一共用了多少张门票？


### Response:
 詹妮在射击游戏中用了5 x 2 = <<5*2=10>>10张门票。
罗素在旋转木马上用了3 x 3 = <<3*3=9>>9张门票。
所以，他们一共用了10 + 9 = <<10+9=19>>19张门票。