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.

Example Input: 这个大学生想在校园里认识其他学生。
(1)他加入了一个兄弟会。(2)他主修工程学。
Example Output: 1

Example Input: 当我呼出时，我看到了我的呼吸。
(1)天气很冷。(2)我的胸部感觉很紧。
Example Output: 1

Example Input: 我感到筋疲力尽。
(1)我很早就上床睡觉了。(2)我熬夜了。
Example Output:
1