I get some of my medications, including Crestor from ExpressScripts. I now have 3 generic versions of 5 mg Crestor. Number (1) is round, pink in color, and has "RSV5" on one side. Number (2) is round, yellow in color and has a number "79" on one side. Number 3 is oval, pink in color and has lettering which appears to be an "H" on one side and the number "29" on the other side. Number 1 is larger in size than number 2 and number 2 is larger in size than number 3. Are they all legitimate?