For the beginners algorithms there with not be R U R' U'. Thats kind of like Rubik's cube coordinates. Instead we put steps for you to follow. For example for the righty algorithm  is "1 - Turn the right side up 2 - Turn the top to the left 3 - Turn the right side down 4 - Turn the top to the right". just so you don't have to memorize R U R' U'. Myself for example I haven't memorized all of the moves in that form. But after begginers you will have to memorize all of the moves by letter, unless something changes.