using System;

​

enum Gesture { Rock, Paper, Scissors, Lizard, Spock, Lava, Water }

​

public class Program

{

    public static void Main(string[] args)

    {

        Random rand = new Random();

        while (true)

        {

            Gesture computerGesture = (Gesture)rand.Next(0, 7);

            Console.Write("Enter your gesture (rock, paper, scissors, lizard, spock, lava, water): ");

            string userInput = Console.ReadLine().ToLower();

            Gesture userGesture;

            if (!Enum.TryParse(userInput, true, out userGesture))

            {

                Console.WriteLine("Invalid gesture. Try again.");

                continue;

            }

            Console.WriteLine("Computer chooses " + computerGesture.ToString().ToLower());

            if (userGesture == computerGesture)

            {

                Console.WriteLine("Tie!");

            }

            else if ((userGesture == Gesture.Rock && (computerGesture == Gesture.Scissors || computerGesture == Gesture.Lizard || computerGesture == Gesture.Water)) ||

                     (userGesture == Gesture.Paper && (computerGesture == Gesture.Rock || computerGesture == Gesture.Spock)) ||

                     (userGesture == Gesture.Scissors && (computerGesture == Gesture.Paper || computerGesture == Gesture.Lizard)) ||

                     (userGesture == Gesture.Lizard && (computerGesture == Gesture.Paper || computerGesture == Gesture.Spock || computerGesture == Gesture.Lava)) ||

                     (userGesture == Gesture.Spock && (computerGesture == Gesture.Rock || computerGesture == Gesture.Scissors)) ||

                     (userGesture == Gesture.Lava && (computerGesture == Gesture.Rock || computerGesture == Gesture.Scissors || computerGesture == Gesture.Paper)) ||

                     (userGesture == Gesture.Water && (computerGesture == Gesture.Rock || computerGesture == Gesture.Spock || computerGesture == Gesture.Lava)))

            {

                Console.WriteLine("You win!");

            }

            else

            {

                Console.WriteLine("Computer wins!");

            }

            Console.WriteLine();

        }

    }

}