static void Main()
{
Console.Write("Enter an expression to evaluate: ");
string expression = Console.ReadLine();
bool isBalanced = ExpressionAnalyzer.IsBalanced(expression);
if (!isBalanced)
{
Console.WriteLine("Your expression is not balanced (contains misnesting brackets).");
}
string[] tokens = ExpressionAnalyzer.Parse(expression);
string[] rpnTokens = ExpressionAnalyzer.TranslateInReversePolishNotation(tokens);
double value = RpnExpressionProcessor.Evaluate(rpnTokens);
Console.WriteLine("Your expression has been evaluated to {0:N4}.", value);
}