public int[,] ReadMatrix(string path)
        {
            try
            {
                string[] mass = File.ReadAllLines(path);
                //string[,] arr = new string[mass.Length, mass[0].Split(' ').Length];
                int[,] fd = new int[mass.Length, mass[0].Split(' ').Length];
                for (int i = 0; i < mass.Length; i++)
                {
                    string[] buf = mass[i].Split(' ');
                    for (int j = 0; j < buf.Length; j++)
                    {
                        fd[i, j] = Convert.ToInt32(buf[j]);
                    }
                }