public static void Main() { Labs lab = new Labs(); Console.WriteLine("Select task of Labs:"); Console.WriteLine("1. CountOdd:"); Console.WriteLine("2. OddNumber:"); Console.WriteLine("3. Synonyms:"); Console.WriteLine("4. Largest3:"); Console.WriteLine("5. WordFilter:"); int switch_on = int.Parse(Console.ReadLine()); switch (switch_on) { case 1: { lab.CountOdd(); break; } case 2: { lab.OddNumber(); break; } case 3: { lab.Synonyms(); break; } case 4: { lab.Largest3(); break; } case 5: { lab.WordFilter(); break; } default: Console.WriteLine("Exit:"); break; } }