import java.util.*; public class Main { static Scanner sc = new Scanner(System.in); public static void main(String[] args) { String s = sc.next(); int sum = 0; for (int i=0; i=49 && s.charAt(i)<=57) { String temp = String.valueOf(s.charAt(i)); sum += Integer.parseInt(temp); } } System.out.println(sum); } }