4a

package abcpackage;
import java.util.Scanner;
public class Package1
{
       Scanner sc=new Scanner(System.in);
       
       int a,b,sum; 
       double avg;
       
       public void input(){
        a=sc.nextInt();
        b=sc.nextInt();
       }
       public void calculate(){
       sum=a+b;
       avg=sum/2;

       System.out.println("sum"+sum);
       System.out.println("avg"+avg);
}
}