asdasd

import java.util.Scanner;
import java.util.Arrays;

public class sortmet {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String nums = scan.nextLine();
        String[] numbers = nums.split(" ");
        System.out.println(sumirane(numbers));
    }


    public static int sumirane(String[] arr){
        int sum = 0;
        for (int i=0;i< arr.length;i++) {
            sum += Integer.parseInt(arr[i]);
        }
        return sum;
    }
}