import java.util.Scanner;

public class trzydziescidziewiec {


    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
       System.out.println("Wprowadz argument 1: ");
       int x = sc.nextInt();
       System.out.println("Wprowadz argument 2: ");
       int y = sc.nextInt();
       System.out.println("Wprowadz operator: ");
       char z = sc.next().charAt(0);

       switch(z){
        case '+' : System.out.println(" "+x+" + "+y+" = "+x+y+" ");break;
        case '-' : System.out.println(" "+x+" - "+y+" = "+x-y+" ");break;
        case '*' : System.out.println(" "+x+" * "+y+" = "+x*y+" ");break;
        case '/' :
            if(y==0){
                System.out.println("Dzielenie przez zero nie dozwolone");
            }else{

            System.out.println(" "+x+" / "+y+" = "+x/y+" "); }break;

        default : System.out.println("Nie prawidłowy znak");
       }
    }
}