static void Main(string[] args)
{
// ((x)+(y))/((t)-(v))+((z)-(x))/((k)+(c))
StreamReader fileStream = new StreamReader(@"..\..\TextFile1.txt");
Formula myFormula = new Formula(fileStream.ReadLine());
Console.WriteLine("Bracket view: " + myFormula.ToString());
myFormula.ToBraket_FreeView();
Console.WriteLine("Bracket-free view: " + myFormula.ToString());
Console.ReadKey();
}