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

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        System.out.println("Hello world!");
        int n=153;
        int count=String.valueOf(n).length();
        int sum=0;
        int a=n;
        while(a!=0){
            int digit=a%10;
            sum=sum+(int)Math.pow(digit,count);
            a=a/10;
        }
        if(n==sum){
            System.out.println("true");
        }
    }
}