Buy Watermelon (The Preliminary Contest for ICPC Asia Xuzhou 2019)

The hot summer came so quickly that Xiaoming and Xiaohong decided to buy a big and sweet watermelon. But they are two very strange people. They are even-numbered enthusiasts. They want to cut the watermelon in two parts, and each part weighs two times as much as a kilogram .They quickly decide which melon to buy. Do you know if you want to buy this melon?

Input

Only one line contains one integer ww (1leq wleq 100)(1≤w≤100),units are kilograms.

Output

If it can meet the requirements, you will output YES, otherwise output NO.

样例输入复制

8

样例输出复制

YES

#include <iostream>
#include <algorithm>
#include <cmath>

using namespace std;

int main()
{
    long long n;
    while(cin>>n)
    {
        if(n<4)
            cout<<"NO"<<endl;
        else if(n%2)
            cout<<"NO"<<endl;
        else
            cout<<"YES"<<endl;
    }
    return 0;
}