using System;

namespace assignment13
{

    class program
    {
        static void Main(string[] args)
        {
            Student S1 = new Student("李奠基", "男", "23", "電機所", "二年級");
            Student S2 = new Student("陳恭莞", "女", "19", "工管系", "二年級");
            Teacher T1 = new Teacher("王績謝", "男", "35", "機械系", "副教授");
            Teacher T2 = new Teacher("黃鍾文", "女", "48", "中文系", "教授");

            People[] list = { S1, S2, T1, T2 };

            foreach (People P in list)
            {
                P.Print();
                Console.WriteLine();
            }
        }
    }

    class People
    {
        protected String Name;
        protected String Sex;
        protected String Age;
        protected String Department;

        public People(String Name, String Sex, String Age, String Department)
        {
            this.Name = Name;
            this.Sex = Sex;
            this.Age = Age;
            this.Department = Department;
        }

        public virtual void Print()
        {
            Console.Write( Name + " 性別：" + Sex + " 年齡：" + Age + " 系所：" + Department);
        }
    }

    class Student : People
    {
        String Student_Grade;

        public Student(String Name, String Sex, String Age, String Department, String Student_Grade)
            : base(Name, Sex, Age, Department)
        {
           
            this.Student_Grade = Student_Grade;
        }

        public override void Print()
        {
            Console.Write("學生：");
            base.Print();
            Console.Write(" 年級：" + Student_Grade);
        }
    }

    class Teacher : People
    {
        String Teacher_Grade;

        public Teacher(String Name, String Sex, String Age, String Department, String Teacher_Grade)
            : base(Name, Sex, Age, Department)
        {
            this.Teacher_Grade = Teacher_Grade;
        }

        public override void Print()
        {
            Console.Write("老師：");
            base.Print();
            Console.Write(" 職等：" + Teacher_Grade);

        }
    }
}