题目描述
Shichi-Go-San (literally "Seven-Five-Three") is a traditional event in a certain country to celebrate the growth of seven-, five- and three-year-old children.
Takahashi is now X years old. Will his growth be celebrated in Shichi-Go-San this time?
-----Constraints-----
- 1 ≤ X ≤ 9
- X is an integer.
-----Input-----
Input is given from Standard Input in the following format:
X
-----Output-----
If Takahashi's growth will be celebrated, print YES; if it will not, print NO.
-----Sample Input-----
5
-----Sample Output-----
YES
The growth of a five-year-old child will be celebrated.
输入格式
见题面
输出格式
见题面
样例输入
5
样例输出
YES