02. From Left to The Right

using System;

namespace FromLeftToTheRight
{
    class Program
    {
        static void Main(string[] args)
        {
            int num = int.Parse(Console.ReadLine());

            for (int i = 0; i < num; i++)
            {
                string number = Console.ReadLine();
                string number1 = string.Empty;
                string number2 = string.Empty;
                long sum1 = 0;
                long sum2 = 0;
                int x = 0;
                for (int j = 0; j < number.Length; j++)
                {
                    if (number[j] == ' ')
                    {
                        x++;
                        j++;
                    }
                    if (x == 1)
                    {
                        number2 += number[j];
                    }
                    else
                    {
                        number1 += number[j];
                    }
                }

                long n1 = long.Parse(number1);
                long n2 = long.Parse(number2);
                if (n1 >= n2)
                {
                    for (int y = 0; y < number1.Length; y++)
                    {
                        if (n1 % 10 == '-')
                        {
                            break;
                        }
                        else
                        {
                            sum1 += n1 % 10;
                            n1 /= 10;
                        }
                    }
                    Console.WriteLine(Math.Abs(sum1));
                }
                else
                {
                    for (int z = 0; z < number2.Length; z++)
                    {

                        if (n2 % 10 == '-')
                        {
                            break;
                        }
                        else
                        {
                            sum2 += n2 % 10;
                            n2 /= 10;
                        }
                    }
                    Console.WriteLine(Math.Abs(sum2));
                }
            }
        }
    }
}