05. Average Number

using System;

namespace AverageNumber
{
    class Program
    {
        static void Main(string[] args)
        {
            int num = int.Parse(Console.ReadLine());
            double sum = 0;

            for (int i = 1; i <= num ; i++)
            {
            int number = int.Parse(Console.ReadLine());
            sum += number;
            }

            Console.WriteLine($"{sum/num:F2}");
        }
    }
}