using System;

public class Program

{

    public static void Main()

    {

        string[] ogrenci={"ahmet","ayse","mehmet","cınar","hacer","eren","guler","zeynep","selin","defne"};

        int[] not={91,90,89,100,88,87,100,100,100,99};

        int toplam =0;

        int b=not.Length;

​

        for(int a=0;a<b;a++){

            Console.WriteLine(ogrenci[a]+" = "+not[a]);

            toplam += not[a];   

        }

        int ortalama=toplam/not.Length;

        for(int a=0;a<not.Length;a++){

          if(not[a]>ortalama){

            Console.WriteLine(ogrenci[a]+"gectin");

          }else{

             Console.WriteLine(ogrenci[a]+"kaldın");

          }

        }

    }

}