#include<bits/stdc++.h>
#include <atcoder/all>
#ifdef LOCAL
#include <debug_print.hpp>
#define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) (static_cast<void>(0))
#endif
using namespace atcoder;
using mint=modint998244353;
using namespace std;
using ll=long long;
using ul=unsigned long long;
int dx[8] = {-1, 1, 0, 0, -1, -1, 1, 1};
int dy[8] = {0, 0, -1, 1, -1, 1, -1, 1};
using Graph=vector<vector<int>>;
ll op(ll a,ll b){return a+b;}
ll e(){return 0;}
int main(){
    int P;
    cin>>P;
    for(int i=1;i<=10000;i++){
        int t=sqrt(P-i*i);
        if(t*t+i*i==P){cout<<"Yes"<<endl;return 0;}
    }
    cout<<"No"<<endl;
}