#include<iostream>
#define ll long long

using namespace std;




void judge(ll n){
  unsigned long int s;
  ll i=0;
  if(n<1 && n>10000000000000){
    cout<<"NO\n";
  }else{
    for(s=0;n>i;s++){
        i=s+i;
    }
     cout<<"Yes\n"<<s-1<<"\n";
  }
}

int main(){
  ll n;
  cin>>n;
  judge(n);
}