/*

 * Watermelon.cpp

 *

 *  Created on: 2013-10-8

 *      Author: wangzhu

 */

/**

 * 若n是偶数，且大于2，则输出YES，

 * 否则输出NO

 */

#include<cstdio>

#include<iostream>

using namespace std;

int main() {

    int n;

    while (~scanf("%d", &n)) {

        if (n >  && (n & ) == ) {

            printf("YES\n");

        } else {

            printf("NO\n");

        }

    }

    return ;

}