Instructions: In this task, you are given a paper review. Based on the review, your job is to identify language and generate "en" if the review is in English or generate "es" if the review is in Spanish. Note that URLs in the text have been replaced with [Link].
Input: Se propone un modelo CityCA, basado en automata celulares para distribucion. El paper esta bien escrito y bien distribuido, tal vez ordenar un poco el abstracta se entenderia mejor.
Output:
es