public bool IsOlderThan(Student other)
        {
            DateTime firstDate = DateTime.Parse(this.OtherInfo.Substring(this.OtherInfo.Length - 10));
            DateTime secondDate = DateTime.Parse(other.OtherInfo.Substring(other.OtherInfo.Length - 10));

            return firstDate > secondDate;
        }
        public static void Main()
        {
            Console.WriteLine(CalculateTriangleArea(3, 4, 5));

            Console.WriteLine(DigitToWord(5));

            Console.WriteLine(FindMaximalNumber(5, -1, 3, 2, 14, 2, 3));

            PrintNumberInGivenFormat(1.3, 'f');
            PrintNumberInGivenFormat(0.75, '%');
            PrintNumberInGivenFormat(2.30, 'r');

            bool horizontal, vertical;
            Console.WriteLine(CalculcateDistance(3, -1, 3, 2.5, out horizontal, out vertical));
            Console.WriteLine("Horizontal? " + horizontal);
            Console.WriteLine("Vertical? " + vertical);

            Student peter = new Student() { FirstName = "Peter", LastName = "Ivanov" };
            peter.OtherInfo = "From Sofia, born at 17.03.1992";

            Student stella = new Student() { FirstName = "Stella", LastName = "Markova" };
            stella.OtherInfo = "From Vidin, gamer, high results, born at 03.11.1993";

            Console.WriteLine("{0} older than {1} -> {2}", peter.FirstName, stella.FirstName, peter.IsOlderThan(stella));
        }