import java.util.Scanner;

public class Calculator {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter four numbers to add:");
        double num1 = scanner.nextDouble();
        double num2 = scanner.nextDouble();
        double num3 = scanner.nextDouble();
        double num4 = scanner.nextDouble();

        double total = num1 + num2 + num3 + num4;
        System.out.println("The total is: " + total);
    }
}