using System;
namespace ConsoleApplication_C_Sharp
{
class Program
{
static void Main(string[] args)
{
bool b;
b = true;
if (b)
Console.WriteLine("true");
b = false;
if (b)
Console.WriteLine("true");
else
Console.WriteLine("false");
if (!b)
Console.WriteLine("true");
}
}
}
/*
run:
true
false
true
*/