Help me in solving LPYAS151 problem

[m_hai_ham]

My issue

how to watch hidden test case

My code

import java.util.*;
import java.lang.*;
import java.io.*;

class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc = new Scanner(System.in);
		int num = sc.nextInt();
		int temp = num;
		int sum = 0 ;
		while(num>0){
		    sum = sum +(int) Math.pow((num%10),3);
		    num = num / 10;
		}
		if(temp == sum){
		    System.out.println("Armstrong");
		}else{
		    System.out.println("Not Armstrong");
		}

	}
}

Learning course: Algorithmic Problem Solving
Problem Link: Armstrong number in Algorithmic Problem Solving