using System;

public class Program

{

    public static void Main()

    {

        //New data type: BOOLEAN or BOL - evaluates to true or false

        Boolean myBool = true;

        //Boolean (conditional) operators:

        //Greater than/less than >, <

        //Greater than or equal to/less than or equal to >=, <=

        Console.WriteLine("7 * 2 > 13 + 5: " + (7 * 2 > 13 + 5));

        //Equal to ==

        //Notice that this Comparison Operator is different from the

        //Assignment operator (=).

        Console.WriteLine("72 == 8 * 9: " + (72 == 8 * 9));

        Console.WriteLine("Enter 'hamburger'");

        string s1 = Console.ReadLine();

        Console.WriteLine( "Yes: " + (s1.ToLower() == "hamburger"));

        //Not equal to !=

        Console.WriteLine("\nLength of your word != 9: " + (s1.Length != 9));

        //Compound operators:

        //AND && - Evaluates true if and only if both conditions are true.

        Console.WriteLine("Length of your word is even AND < 10 " + (s1.Length % 2 == 0 && s1.Length < 10));

        //OR || - Evaluates true if either condition is true.

        Console.WriteLine("Length of your word is even OR < 10 " + (s1.Length % 2 == 0 || s1.Length < 10));

        //XOR ^ - Evaluates true if exactly one of the conditions is true

        //"Exclusive OR"

        Console.WriteLine("Length of your word is even XOR < 10 " + (s1.Length % 2 == 0 ^ s1.Length < 10));

        //You can control whether a block of code runs or not with an

        //IF statement

        Console.WriteLine("\nEnter an animal name: ");

        s1 = Console.ReadLine();

        if(s1 == ("dog") || s1 == ("cat") || s1 == ("fish"))

           Console.WriteLine("Ah, a common household pet!");

        if(s1 == ("horse") || s1 == ("cow") || s1 == ("pig"))

           Console.WriteLine("Oho, a common farm animal");

        if(s1 == ("lion") || s1 == ("tiger") || s1 == ("bear"))

           Console.WriteLine("Oh my, that is likely to eat you!");

           if(s1.Length < 3)

    {          

           Console.WriteLine("There's no way that's and animal.");

           Console.WriteLine("I'm changing your animal.");

           s1 = "MIGHTY T-REX";

           Console.WriteLine("Your animal is the " + s1 + ".");

    }          

    }

}