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 Input:
那人向苍蝇用力击打。
(1)苍蝇嗡嗡飞走。(2)苍蝇静止不动。

Ex Output:
1


Ex Input:
那人在梯子上失去了平衡。
(1)他爬上梯子。(2)他从梯子上摔下来了。

Ex Output:
2


Ex Input:
那女孩落在游泳池里。
(1)她在泳池甲板上奔跑。(2)她跳下了跳水板。

Ex Output:

2