package jp;

import java.util.Scanner;

public class Calculator {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        System.out.println("dozwolone operacje (+)(-)(*)(/)(%)(^)");
        double var1 = scanner.nextDouble();
        scanner.nextLine();
        char key = scanner.nextLine().charAt(0);
        double var2 = scanner.nextDouble();

        switch(key){
                case '+':
                System.out.printf("%f %c %f = %.2f",var1,key,var2,var1 + var2);
                        break;
                case '-':
                System.out.printf("%f %c %f = %.2f",var1,key,var2,var1 - var2);
                    break;
                case '*':
                System.out.printf("%f %c %f = %.2f",var1,key,var2,var1 * var2);
                    break;
                case '/':
                System.out.printf("%f %c %f = %.2f",var1,key,var2,var1 / var2);
                    break;
                case '%':
                System.out.printf("%f %c %f = %.2f",var1,key,var2,var1 % var2);
                    break;
                case '^':
                System.out.printf("%f %c %f = %.2f",var1,key,var2,Math.pow(var1 , var2));
                    break;
        }
        scanner.close();




    }}