#include #define rep(i,n) for(int i = 0; i < (n); i++) using namespace std; typedef long long ll; int main(){ cin.tie(0); ios::sync_with_stdio(0); ll N; cin >> N; ll p3 = 1; while(p3 * 3 <= N) p3 *= 3; ll cnt = 0; while(N > 0) { cnt += N / p3; N %= p3; p3 /= 3; } cout << (cnt % 2 == 0 ? "YES" : "NO") << endl; }