ParseIpRanges invalid character in string, C#

ParseIpRanges invalid character in string

//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here
            //var x = Environment.CurrentDirectory;
            
            Console.WriteLine(IsIpInRange("67.63.175.193", "67.63.175.254", "67.63.175.205", 2));
            ParseIpRanges();
        }
        
              /// <summary>
        /// 
        /// </summary>
        /// <param name="lowRange"></param>
        /// <param name="highRange"></param>
        /// <param name="mode">default is 2, 1 = exclude lower end but include upper end, 2= include both upper and lower end, 3 = exclude both low and high boundaries, 4= include lower but exclude upper end</param>
        /// <returns></returns>
        public static bool IsIpInRange(string lowRange, string highRange, string _ipAddress, int mode = 2)
        {
            var lowerRange = Ip2Long(lowRange);
            var upperRange = Ip2Long(highRange);
            var ipAddress =Ip2Long(_ipAddress);
     
            switch (mode)
	        {
                case 1:
                    return ipAddress > lowerRange && ipAddress <= upperRange;
                case 3:
                    return ipAddress > lowerRange && ipAddress < upperRange;
                case 4:
                    return ipAddress >= lowerRange && ipAddress < upperRange;
	            case 2:
                default:
                    return ipAddress >= lowerRange && ipAddress <= upperRange;
	        }
        }
        
        public static long Ip2Long(string ip)
        {
            string[] ipBytes;
            double num = 0;
            if (!string.IsNullOrEmpty(ip))
            {
                ipBytes = ip.Split('.');
                for (int i = ipBytes.Length - 1; i >= 0; i--)
                {
                    num += ((int.Parse(ipBytes[i]) % 256) * Math.Pow(256, (3 - i)));
                }
            }
            return (long)num;
        }
        
        
        /// <summary>
        /// 
        /// </summary>
        /// <param name="itm">IP Range Setting Folder</param>
        /// <returns></returns>
        private static void ParseIpRanges()
        {
            var retLst = new List<Tuple<long, long>>();

var ipRanges = new string[]{"67.63.175.205–67.63.175.205"};

for (var i = 0; i < ipRanges.Length; i++)
                {
                    if (!string.IsNullOrWhiteSpace(ipRanges[i]))
                    {
                         var range = ipRanges[i].Split("-".ToCharArray());
                        Console.WriteLine(range[0]);
                      
                        try
                        {
                            var lowerRange = Ip2Long(range[0]);
                            var upperRange = Ip2Long(range[1]);
                            
                            Console.WriteLine(lowerRange);
                            Console.WriteLine(upperRange);

}
                        catch (Exception e)
                        {
                            Console.WriteLine(e);
                            //If cannot parse range, than skip and log
                            //Log.Error("Could not parse IPRange:"+ipRanges[i],e,typeof(IDMAuthenticationHelper));
                        }

}
                   
                }
        }

}
}


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