gistfile1.txt

            {
                { new Func<int, bool>(x => x % 3 == 0), new Func<int, string>(x => "Fizz") },
                { new Func<int, bool>(x => x % 5 == 0), new Func<int, string>(x => "Buzz") },
                { new Func<int, bool>(x => x % 3 != 0 && x % 5 != 0), new Func<int, string>(x => x.ToString())  },
                { new Func<int, bool>( x => true), new Func<int, string>(x => "\n" ) }
            };

            var output = from n in Enumerable.Range(1, 100)
                         from f in rules
                         where f.Key(n)
                         select f.Value(n);

            output.ToList().ForEach(Console.WriteLine);