#include <bits/stdc++.h>

using namespace std;

using ll = long long;

constexpr char newl = '\n';

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    ll a;
    cin >> a;

    for (ll i = 3; ; i++) {
        ll sum = i * (i - 1) / 2;
        // i * x + sum == a
        if (a < sum) break;
        if ((a - sum) % i == 0) {
            cout << "YES" << newl;
            return 0;
        }
    }
    cout << "NO" << newl;

    return 0;
}