import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
//        System.out.println("hello");
        System.out.println(add());
    }

    public static double add() {
        Scanner scanner = new Scanner(System.in);
        double num1;
        System.out.print("Birinchi sonni kiriting: ");
        num1 = scanner.nextDouble();
        double num2;
        System.out.print("Ikkinchi sonni kiriting: ");
        num2 = scanner.nextDouble();
        double result;
        result = num1 + num2;
        return result;
    }
}