Problem Statement

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.