import java.util.Random;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Random random = new Random();
        Scanner scanner = new Scanner(System.in);

        //variables

        boolean coinFlip = random.nextBoolean();


        System.out.println("Hello there do you want to flip a coin or use a calculator?");
        String userinput = scanner.nextLine();


        if (userinput.equalsIgnoreCase("flip a coin")) {
            if (coinFlip) {
                System.out.print("HEADS!");
                System.exit(0);
            } else {
                System.out.print("TAILS!");
                System.exit(0);
            }

        }

        if (userinput.equals("use a calculator")) {
            System.out.println("input 1st number");
            double num1 = scanner.nextDouble();

            System.out.println("input 2nd number");
            double num2 = scanner.nextDouble();

            double sum = num1 + num2;

            scanner.nextLine();

            System.out.println("pls choose among the following: addition , subtraction , division, or multiplication");

            String operation = scanner.nextLine();



            if (operation.equalsIgnoreCase("addition")) {
                System.out.println("The total is " + sum);

        }

            if(operation.equalsIgnoreCase("Subtraction")){
                double subtracted = num1 - num2;
                System.out.print("the answer is " + subtracted);
            }
            if(operation.equalsIgnoreCase("division")) {
                double division = num1 / num2;
                System.out.print("the answer is " + division);
            }
            if(operation.equalsIgnoreCase("multiplication")){
                double multiply = num1 * num2;
                System.out.print("the answer is " + multiply);
            }
        }

            scanner.close();
        }
}