using System;
using System.Text.RegularExpressions;

namespace CSharpExercises.Exercises.Regular_expressions
{
    class DecimalDigitInformationTask
    {
        public static string DecimalDigitInformation(string word)
        {
            Regex regex = new Regex(@"\d");
            Match match = regex.Match(word);

            return match.Success ? $"Digit {match.Value} at position {match.Index}" : $"No digit found!";
        }

        public static void Main()
        {
            Console.WriteLine(DecimalDigitInformation("The 7 is the digit!"));    // Digit 7 at position 4
            Console.WriteLine(DecimalDigitInformation("Hamster and lion"));       // No digit found!
            Console.WriteLine(DecimalDigitInformation("1st"));                    // Digit 1 at position 0
        }
    }
}