2darowunfucker

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _2darowunfucker
{
    class Program
    {
        static void Main(string[] args)
        {
            if (args.Length < 1)
            {
                Console.Out.WriteLine("OI GIVE ME A FILE!");
                Console.ReadKey();
                return;
            }
            else
            {
                List<long> missing = new List<long>();

                string file = args[0];
                try
                {
                    long Row = -1;
                    long Actual;
                    string row;
                    foreach (string line in System.IO.File.ReadAllLines(file))
                    {
                        if (Row == -1)
                        {
                            if (string.IsNullOrEmpty(line) || line[0]==' ' || line.ToLower().StartsWith("2da"))
                            {
                                continue;
                            }
                            else if (char.IsNumber(line[0]))
                            {
                                Row = 0;
                            }
                        }

                        row = "";
                        foreach (char c in line)
                        {
                            if (!char.IsNumber(c))
                                break;
                            row += c;
                        }

                        Actual = Convert.ToInt64(row);
                        Console.Out.WriteLine(Actual);
                        if (Actual != Row++)
                        {
                            Console.Clear();
                            Console.Out.WriteLine("THIS ROW IS FUCKED: "+Actual);
                            Console.ReadKey();
                            return;
                        }
                    }
                }
                catch (Exception ex)
                {
                    Console.Out.WriteLine("You fucked up: "+ex.GetType().Name+" "+ex.Message);
                }
                Console.Clear();
                Console.Out.WriteLine("NO ROWS SEEMS FUCKED!");
                Console.ReadKey();
            }
        }
    }
}