using System;
using System.IO;

namespace test
{
    class Program
    {
        static StreamReader streamReader = new StreamReader("..//..//problem.in");
        static StreamWriter streamWriter = new StreamWriter("..//..//problem.out");
        static int n = int.Parse(streamReader.ReadLine());
        static void Main(string[] args)
        {
            // Program.exe runs from [your_source_code_location]\bin\Debug
            // So problem.in and problem.out in near your source code
            try{
                Program1();
               }
            finally
            {
                streamReader.Close();
                streamWriter.Close();
            }
        }

        static void Program1()
        {
                for (int i = 0; i < n; i++)
                {
                    string line = streamReader.ReadLine();
                    string[] numbers = line.Split(' ');
                    int sum = int.Parse(numbers[0]) + int.Parse(numbers[1]);
                    streamWriter.WriteLine(sum);
                }
        }	
	}
}