2017_September_17 Grandpa Stavri

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

namespace Granpa_Stavri
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());

            var totalLiters = 0.0;
            var averageDegrees = 0.0;

            for (int i = 0; i < N; i++)
            {
                double liters = double.Parse(Console.ReadLine());
                double degrees = double.Parse(Console.ReadLine());

                totalLiters += liters;
                averageDegrees += liters * degrees;

            }

            averageDegrees = averageDegrees / totalLiters;

            Console.WriteLine("Liter: {0:f2}", totalLiters);
            Console.WriteLine("Degrees: {0:f2}", averageDegrees);

            if (averageDegrees<38)
            {
                Console.WriteLine("Not good, you should baking!");
            }
            else if (averageDegrees>=38 && averageDegrees<=42)
            {
                Console.WriteLine("Super!");
            }
            else
            {
                Console.WriteLine("Dilution with distilled water!");
            }

        }
    }
}