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.

Input: Consider Input: 这男子觉得有义务参加这次活动。
(1)他拒绝了他朋友的邀请。(2)他答应了他的朋友他会去的。

Output: 2


Input: Consider Input: 螺栓被拧紧了。
(1)我更换了螺栓。(2)我扭动了扳手。

Output: 2


Input: Consider Input: 我吐出牛奶。
(1)牛奶尝起来很酸。(2)我的嘴是干的。


Output: 1