Write a Program in C# to Validate Mobile Number using Regular Expressions.

using System;
using System.Text.RegularExpressions;
class Program
{
    static void Main()
    {
        Console.WriteLine("Enter your mobile number");
        string mobileNumber = Console.ReadLine();

        string MNregExp = @"^\+?\d{0,2}\-?\d{4,5}\-?\d{5,6}";

        if (Regex.IsMatch(mobileNumber, MNregExp))
        {
            Console.WriteLine("Mobile number is in correct format");
        }
        else
        {
            Console.WriteLine("Mobile number is in incorrect format");
        }
    }
}