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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int waterLevel;

            Console.Write("Water Level: ");
            waterLevel = int.Parse(Console.ReadLine());

            // Check water level and generate alarm if more than 80
            // or warning if more than 60

            // Check the highest value first
            if(waterLevel > 80)
            {
                Console.WriteLine("Alarm water is about to overflow barrel");
            }
            else
            {
                // Values above 80 have already been handled above, so we can
                // now check for values above 60.
                if (waterLevel > 60)
                {
                    Console.WriteLine("Warning water level is getting too high");
                }
                else 
                {
                    // Don't need to check for less than or equal to 60 because
                    // all values above 60 have been handled above.
                    Console.WriteLine("Situation normal");
                }
            }

            Console.ReadKey(); // Pause
        }
    }
}