using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading;

using System.Diagnostics;

using System.Runtime.InteropServices;

namespace rmb

{

    class Program

    {

        static void Main(string[] args)

        {

            int[] score = new int[] { 75, 65, 85, 85, 95, 65, 46, 46, 12, 46, 50, 125, 55, 66, 66, 99, 87, 89, 91, 95 };

            int sumscore = 0;

            foreach (var item in score)

            {

                sumscore += item;

            }

            int sumad = sumscore / score.Length;

            Console.WriteLine("平均成绩是{0}", sumad);

            Console.ReadKey();

        }

    }

}