import java.util.Scanner;
class Calc2 {
  public static void main(String[] args){

    String yn;
    do{
        Scanner scan=new Scanner(System.in);
    System.out.print(" Enter first  # : ");
        int num1=scan.nextInt();
        System.out.print(" Enter second # : ");
        int num2=scan.nextInt();
        System.out.print(" Selec Symbol (+, -, *, /): ");
        String sym=scan.next();
        int res;
        switch(sym){

       case "+": res=num1 + num2;
         System.out.println(" Addition is :"+res);
         System.out.println();
     break;
       case "-": res= num1-num2;
         System.out.println(" Substraction is :"+res);
         System.out.println();
     break;
       case "*": res=num1*num2;
         System.out.println(" Multiplication is:"+res);
         System.out.println();
     break;
       case "/": res=num1/num2;
         System.out.println(" Division is :"+res);
     System.out.println();
         break;
       default: System.out.println(" Invalid Symbol ");
     System.out.println();
         break;
         }
         System.out.print(" Do you want to continue ? [y = Yes, n = No ]: ");
     yn=scan.next();
    }while(yn.equal("y")││yn.equals("Y"));
 }
}