using System.IO;

using System;

public class Program

{

    public static void Main()

    {

        var testPairs = new [] {

            ("/home", "file.txt"),

            ("/home/", "file.txt"),

            ("/home", "/file.txt"),

            ("/home/", "/file.txt"),

        };

        foreach(var (dir, file) in testPairs)

        {

            Console.WriteLine($"Dir: {dir,-7} File: {file,-9} => {Path.Combine(dir, file)}");

        }

    }

}