In this task you are given a premise and two alternatives in Chinese. You must choose the alternative that is more plausibly the cause or effect of the situation described by the premise. The input format is "premise
(1)alternative_1(2)alternative_2", the output should either be "1" or "2" based on your judgment.

[EX Q]: 旅客到达边境。
(1)巡逻员检查了他们的护照。(2)巡逻人员指控他们走私。
[EX A]: 1

[EX Q]: 少年溜出家门。
(1)他对他的父母撒了谎。(2)他的父母把他关了禁闭。
[EX A]: 2

[EX Q]: 我错过了我女朋友的电话。
(1)我给她回了电话。(2)我与她共进晚餐。
[EX A]:
1