/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		int arr[]= {56,89,95,76};
 
		for (int i= 0; i < arr.length ; i++ ){
			if(arr[i] >= 90){
 
				System.out.println("Great Job !");
			}else if(arr[i] >=89 && arr[i] <=80){
 
				System.out.println("Good Job !");
			}
			else if(arr[i] >=79 && arr[i]<=70){
 
				System.out.println("Keep it work !");
			}else{
				System.out.println("okay ");
			}
		}
	}
}

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