private static void intExercise5() { Console.WriteLine("Enter ages for Students"); Console.Write("Student1:"); int age1 = Convert.ToInt32(Console.ReadLine()); Console.Write("Student2 :"); int age2 = Convert.ToInt32(Console.ReadLine()); Console.Write("Student3 :"); int age3 = Convert.ToInt32(Console.ReadLine()); Console.WriteLine(ListExercise.HasTeen(age1, age2, age3)); }