import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        long n = scan.nextLong();
        boolean flg = false;
        for(int i = 0 ; i < n-2 ; i++){
        	if(i*3 + 3 == n){
        		flg = true;
        		break;
        	}
        }
        if(flg){
        	System.out.println("YES");
        }else{
        	System.out.println("NoClassDefFoundError");
        }
    }
}