#include<iostream>
using namespace std;
int main(){
int n;
while(1){
cin>>n;
if(n==0){
return 0;
}
int a,b,c;
a=n%10;b=n/10%10;c=n/100;
if(n==a*a*a+b*b*b+c*c*c){
cout<<"Yes"<<endl;
}else{
cout<<"No"<<endl;
}
}
}