#include <bits/stdc++.h>
#ifdef LOCAL
#include "./debug.cpp"
#else
#define debug(...)
#define print_line
#endif
using namespace std;
using ll = long long;

int main() {
    int N;
    cin >> N;

    ll sum = 0;
    for (int i = 1; i <= N; i++) {
        if (i % 2) {
            sum += i;
        } else {
            sum -= i;
        }
    }
    puts(sum == 0 ? "Yes" : "No");
}