02. From Left to The Right

import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine()),
            index, leftNumber, rigthNumber, sum = 0;
        String input, left, rigth, number;

        for (int i = 0; i < n; i++) {
            input = scanner.nextLine();
            index = input.indexOf(" ");
            left = input.substring(0, index);
            rigth = input.substring(index + 1);
            number = Long.parseLong(left) > Long.parseLong(rigth) ? left : rigth;

            for (int j = 0; j < number.length(); j++) {
                if (number.charAt(j) == '-') {
                    continue;
                }
                sum += Integer.parseInt(number.substring(j, j + 1));
            }

            System.out.println(sum);
            sum = 0;
        }
    }
}