using System;

public class Program

{

    public static void Main()

    {

        var a = false;

        var b = false;

        var c = a && !b;

        Print(a,b,c);

        b = true;

        c = a && !b;

        Print(a,b,c);

        a = true;

        b = false;

        c = a && !b;

        Print(a,b,c);

        a = true;

        b = true;

        c = a && !b;

        Print(a,b,c);

    }

    static void Print(bool a, bool b, bool c){

        Console.WriteLine($"a is {a} and b is {b}");

        Console.WriteLine($"a && !b: {a && !b}");

        Console.WriteLine($"!a && b: {!a && b}");

        Console.WriteLine($"c: {c}");

        Console.WriteLine($"!c: {!c}");

    }

}