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]: 侦探们在犯罪现场撒了粉来显示指纹。
(1)他们发现了凶手的身份。(2)他们在犯罪现场发现了武器。
[EX A]: 1

[EX Q]: 我看电影屏幕的视线被挡住了。
(1)我身后的情侣在窃窃私语。(2)一个高个子的人坐在我面前。
[EX A]: 2

[EX Q]: 我重新加了水瓶。
(1)我喝了它里所有的水。(2)我把它放在冰箱里了。
[EX A]:
1