1. Three Numbers

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

class Program
{
    static void Main()
    {
        Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
        int a = int.Parse(Console.ReadLine());
        int b = int.Parse(Console.ReadLine());
        int c = int.Parse(Console.ReadLine());

        int biggest = Math.Max(a, Math.Max(b, c));
        int smallest = Math.Min(a, Math.Min(b, c));
        double mean = (double) (a + b + c)/3;


        Console.WriteLine(biggest);
        Console.WriteLine(smallest);
        Console.WriteLine("{0:F2}", mean);
    }
}