C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,a,b,c,s;
	cin>>n;
	a=n/100%10;
	b=n/10%10;
	c=n%10;
	s=a*a*a+b*b*b+c*c*c;
	if(s==n){
		cout<<"YES"<<endl;
	}else{
		cout<<"NO"<<endl;
	}
}

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int g = n % 10;
		int s = n / 10 % 10;
		int b = n / 100;
		int s1 = g * g * g + s * s * s + b * b * b;
		if(n == s1){
			System.out.println("YES");
		}else{
			System.out.println("NO");
		}
		sc.close();
	}

}

Python :

n = int(input())
b = n // 100
s = n // 10 % 10
g = n // 1 % 10
if b ** 3 + s ** 3 + g ** 3 == n:
    print("YES")
else:
    print("NO")