using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Homework2
{
    class Program
    {
        static void Main(string[] args)
        {

            Console.WriteLine("請輸入國文成績");
            int chinese = int.Parse(Console.ReadLine());
            Console.WriteLine("請輸入英文成績");
            int english = int.Parse(Console.ReadLine());
            Console.WriteLine("請輸入數學成績");
            int math = int.Parse(Console.ReadLine());
            Console.WriteLine("請輸入自然成績");
            int nature = int.Parse(Console.ReadLine());
            Console.WriteLine("請輸入社會成績");
            int society = int.Parse(Console.ReadLine());
            int total = chinese + english + math + nature + society;
            Console.WriteLine("總分" + total);
            double average = (double)total / 5;
            Console.WriteLine("平均" + average);
        }
    }
}