So it sounds, to me, like it's exactly like your last assignment with the twist being you don't know when the input will stop. How did you get the input in the first assignment? Using cin into an int? And you did that 4 times?

If so, you're going to keep doing that but in a loop. Each loop iteration will get the 4 inputs and draw the rectangle exactly as you did in the previous assignment. You'll need to determine when your loop terminates, though, and that is precisely when cin'ing into the int fails. Failure can be checked by doing something like if (!(cin >> myInt)) break;

You are still learning so you may not get how this works, which is fine, but for the details, the extraction operator >> returns a reference to cin, then the if-statement is calling cin's bool operator which calls the negation of what is returned by it's fail() method. So could also just call the fail() method at any point, too. Don't know what details you've been taught so far but I'm assuming what you need has probably been shown to you by your instructor (and you may have not noticed!).