static void Main(string[] args) { Console.OutputEncoding = System.Text.Encoding.UTF8; if (args[0] == "1") { int chal = 0; string comm = Console.ReadLine(); try { chal = int.Parse(comm); } catch { } if (chal == 1) { Set1.Challenge1(); } if (chal == 2) { Set1.Challenge2(); } if (chal == 3) { Set1.Challenge3(); } if (chal == 4) { Set1.Challenge4(); } if (chal == 5) { Set1.Challenge5(); } if (chal == 6) { Set1.Challenge6(); } if (chal == 7) { Set1.Challenge7(); } } Console.ReadLine(); }