/*

            *##..'^---^'..##*

*/





import java.io.*;

import java.io.IOException;



public class Main {



    static BufferedReader waa = new BufferedReader(new InputStreamReader(System.in));
    static double input1, input2;
    static int z;
    static double output;


public static void choices() throws IOException {

    System.out.println("Enter A Value 1-4\n1 - Addition\n2 - Subtraction\n3 - Multiplication\n4 - Division\nInput it Here: ");

    String Valz = waa.readLine();

    z = Integer.parseInt(Valz);

}



public static void Operation() throws IOException {

        System.out.print("Input 1st Number: ");

        String val1 = waa.readLine();

        input1 = Integer.parseInt(val1);

}



public static void Operation2() throws IOException {

        System.out.print("Input 2nd Number: ");

        String val2 = waa.readLine();

        input2 = Integer.parseInt(val2);

}

public static vod Ope1Ope2() throws IOException {
        Operation();
        Operation2();
}


public static void OperationOfNumbers() throws IOException {
    switch(z) {
    case 1:
        Ope1Ope2();
        output = input1 + input2;
        display();
        break;
    case 2:
        Ope1Ope2();
        output = input1 - input2;
        display();
        break;
    case 3:
        Ope1Ope2();
        output = input1 * input2;
        display();
        break;
    case 4:
        Ope1Ope2();
        output = input1 / input2;
        display();
        break;
    default:
        System.out.println("Error: Please Try it Again");
        do {
        choices();
        OperationOfNumbers();
        }while(z != );
        break;
    }
}

public static void display() throws IOException {
    System.out.println("The Total Value: " + output);
}


public static void main(String args[]) throws IOException {

    choices();
    OperationOfNumbers();

}







}