A307.水仙花数

#include<iostream>
using namespace std;
int main(){
    int n;
    cin >> n;
    int x = n/100;
    int y = (n/10)%10;
    int z = n%10;
    if (x*x*x+y*y*y+z*z*z == n){
        cout << "YES";
    }else{
        cout << "NO";
    }
    return 0;
}