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: 男孩把铅笔磨光了。
(1)它很便宜。(2)它很钝。
Example Output: 2

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

Example Input: 男孩戴着牙套。
(1)他有一个空腔。(2)他的牙齿变得直了。
Example Output:
2