Test.java

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStreamReader;
import java.util.Scanner;

public class Test {
 public static void main(String[] args) throws FileNotFoundException {
 Scanner s = new Scanner(new InputStreamReader(new FileInputStream("test.in")));
 String s1 = s.nextLine();
 String s2 = s.nextLine();

 sum(s1);
 sum(s2);
 }

 private static void sum(String s1) {
 int sum = 0;
 int i = 0;
 while (i < s1.length()) {
 char c = s1.charAt(i);

 if (Character.isDigit(c)) {
 sum += Integer.parseInt(Character.toString(c));
 }
 i++;
 }
 System.out.println(sum);
 }
}