Watermelon

 

描述：

One hot summer day Pete and his friend Billy decided to buy a watermelon. They chose the biggest and the ripest one, in their opinion. After that the watermelon was weighed, and the scales showed w kilos. They rushed home, dying of thirst, and decided to divide the berry, however they faced a hard problem.

在一个夏日Pete和他的朋友Billy决定买一个西瓜。他们选择了他们认为最大的西瓜。在西瓜称重后，秤显示x千克。他们迫不及待地赶回了家，渴死了，决定把浆果分开，但他们面临着一个棘手的问题。

Pete and Billy are great fans of even numbers, that's why they want to divide the watermelon in such a way that each of the two parts weighs even number of kilos, at the same time it is not obligatory that the parts are equal. The boys are extremely tired and want to start their meal as soon as possible, that's why you should help them and find out, if they can divide the watermelon in the way they want. For sure, each of them should get a part of positive weight.

皮特和比利非常喜欢偶数，这就是为什么他们想要把西瓜分成两个部分，每个部分的重量都是偶数公斤，同时这两个部分并不一定是相等的。男孩们非常累，想尽快开始吃瓜，这就是为什么你应该帮助他们，看看他们是否能按照他们想要的方式分西瓜。当然，他们每个人都应该得到一部分是正数。

输入：

The first (and the only) input line contains integer number w (1 ≤ w ≤ 100) — the weight of the watermelon bought by the boys.

第一个（也是唯一一个）输入行包含整数w（1） ≤ W ≤ 100）男孩们买的西瓜的重量。

输出：

Print YES, if the boys can divide the watermelon into two parts, each of them weighing even number of kilos; and NO in the opposite case.

如果男孩们能把西瓜分成两部分，每一部分的重量都是偶数公斤，那么请打印“是”；在相反的情况下没有。