#include<bits/stdc++.h>
//#include<atcoder/all>

using namespace std;
//using namespace atcoder;
using ll = long long;
using ull = unsigned long long;
using P = pair<int,int>;
#define rep(i,n) for(ll i = 0;i < (ll)n;i++)
#define ALL(x) (x).begin(),(x).end()
#define MOD 1000000007



int main(){
  
  int a;
  cin >> a;
  for(ll i = 3;;i++){
    if(i*(i+1)/2 > a)break;
    for(ll j = 0;j <= i-3;j++){
      if((i-j)*(i+j+1)/2 == a){
        cout << "YES\n";
        return 0;
      }
    }
  }
  cout << "NO\n";


  return 0;
}