题解

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