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 [] arr = {2,3,4,5,5};
       System.out.println("arr length="+arr.length);
  for(int i=arr.length; i>0;) 
 { --i;
     System.out.println(arr[i]);
 }
  
  
  // maximum, minimum in array 
 System.out.println("highest num in array");
  int[] arr2 = {2,4,6,7,67,89};
  int max =0;
  int max2 =0;
  
  
  for (int elmnt :arr2)
 { 
     if (elmnt>max)
    {  max = elmnt;
    } 
    else  if (elmnt>max2 && elmnt!=max)
     {
         max2 = elmnt;
     }
 }
   System.out.println(max);
   
   System.out.println("second highest number is\n"+ max2);
   
   
   
   
    }
}