import java.io.*;
import java.lang.*;
import java.lang.Math;
import java.util.Scanner;

public class Calculator {
	public static void main(String[] args)
	{
		// Stores two numbers
		double a, b;

		// Take input from the user
		Scanner scn = new Scanner(System.in);

		System.out.println("Enter the numbers:");

		// Take the inputs
		a = scn.nextDouble();
		b = scn.nextDouble();

		System.out.println("Enter the arithmetic operator (+,-,*,/):");

		char op = scn.next().charAt(0);
		double output = 0;

		switch (op) {
		// case to add two numbers
		case '+':
			output = a + b;
			break;

		// case to subtract two numbers
		case '-':
			output = a - b;
			break;

		// case to multiply two numbers
		case '*':
			output = a * b;
			break;

		// case to divide two numbers
		case '/':
			output = a / b;
			break;

		default:
			System.out.println("You enter wrong input");
		}

		System.out.println("Result:");
		System.out.println(a + " " + op + " " + b + " = " + output);
	}
}