Here is a mix of #Mastery07 and #Mastery10. I took it easy and created a program using comments, outputs and imputs.
A comment is a text that won't be compiled, but helps other people to read.
An output is to give information to the user, you can put it like: cout << "What you want to say" << endl;
The imput is to give information to the computer. The way to put an imput is: cin >> Variable;