import java.util.Scanner;
 import java.util.inputmismatchexception;
 public class add 
  {
   	public static void main(sting[]args){
	   	java.util.Scanner input=new java.util.Scanner(System.in);
	   	System.out.print("enter two integers:");
	   	int a=input.nextInt(); 
	   	int b=input.nextInt(); 
	   	int Sum=sum(a,b);
	   	System.out.println("sum is" + Sum);
	 }
   	     
   	 public static int sum(int number1,int number 2){ 
   	      try{   
   	              return number1+number2;
   	         }  
   	      catch(inputmismatchexception ex){     
   	              input.nextLine();    
   	              System.out.println("incorrect input and enter two integers :");
   	      }
   	 }
  }