using System;

namespace assignment15
{

    class program
    {
        static void Main(string[] args)
        {
            Student S1 = new Student("李樺學", "男", 23, "化學所", 2);
            Student S2 = new Student("陳恭莞", "女", 19, "工管系", 2);
            Faculty F1 = new Faculty("王績謝", "男", 35, "機械系", "副教授");
            Faculty F2 = new Faculty("黃鍾文", "女", 48, "中文系", "教授");

            People[] list = { S1, S2, F1, F2 };

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

    class People
    {
        protected string name;
        protected string gender;
        protected int age;
        protected string department;

        public People(string name, string gender, int age, string department)
        {
            this.name = name;
            this.gender = gender;
            this.age = age;
            this.department = department;
        }

        public virtual void Print()
        {
            Console.Write( name + " 性別：" + gender + " 年齡：" + age + " 系所：" + department);
        }
    }

    class Student : People
    {
        private int student_grade;

        public Student(string name, string gender, int age, string department, int student_grade) 
                      : base(name, gender, age, department)
        {
           
            this.student_grade = student_grade;
        }

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

    class Faculty : People
    {
        private string job_level;

        public Faculty(string name, String gender, int age, string department, string job_level) 
                     : base(name, gender, age, department)
        {
            this.job_level = job_level;
        }

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

        }
    }
}