#include<bits/stdc++.h>
#define REPP(i,n,m) for(int i=n;i<=m;i++)
#define REPM(i,n,m) for(int i=n;i>=m;i--)
using namespace std;
void yn(bool f){if(f){cout<<"Yes\n";}else{cout<<"No\n";}}
bool isnum(char c){return ('0'<=c&&c<='9');}

int main(){
	int p;
	bool f=false;
	cin>>p;
	for(int i=1;i<=pow(p,0.5)&&!f;i++){
		for(int j=1;j<=pow(p,0.5)&&!f;j++){
			if(i*i+j*j==p){
				cout<<"Yes";
				f=true;
			}
		}
	}
	if(!f) cout<<"No";
	
	
}