public void CheckFirstNotDuplicateCharactorr(string inputString, char expected)
{
var sut = new FirstDuplicateCharactorLogic();
var result = sut.FirstNotDuplicateCharactor(inputString);
Assert.Equal(expected, result);
}
static void Main(string[] args)
{
System.Console.Write("Please input string: ");
var inputString = Console.ReadLine();
var text = new FirstDuplicateCharactorLogic();
System.Console.WriteLine($"FirstDuplicateCharactor is: {text.FirstDuplicateCharactor(inputString)}");
System.Console.WriteLine($"FirstNotDuplicateCharactor is: {text.FirstNotDuplicateCharactor(inputString)}");
}