#include <iostream>
#include <math.h>
using ll = long long;
#define MOD 1000000007
using namespace std;

int main(){
    ll n,x;
    cin >> n;
    x = (ll)(sqrtl(2 * n + 0.25L) - 0.5);
    for(ll i = 0; i < 10; i++)
    {
        if (n == (x+i)*(x+i+1)/2) {
            cout << "YES" << endl << x << endl;
            return 0;
        }
    }
    cout << "NO" << endl;
    return 0;
}