If you don't have a compiler, I strongly suggest you get one. A simple one is good enough for my tutorials, but get one. It has only a few keywords for DOS, and it has no keywords to use for output. This means that almost everything is stored in a header file. This gives the use of many functions.
Lets break down the program and then look at it.
By including header files, you an gain access to many different functions. For example, the cout function requires iostream.h. The next line of the program may seem strange. If you have programmed in other languages you might think that print would be used to display text. The quotes tell the compiler that you want to output the literal string as-is.