Originally, a winning ticket was denoted by two matching letters in the play area. Later, this was updated to the winning amount being highlighted with parentheses at the top or bottom of the play area, in order, but not necessarily consecutively; for example, a $100 winner would be denoted (1)(0)(0). Still later, three letters were scattered around the play area, spelling out the winning amount; for example, a prize of $100 is denoted H U N; losing tickets are denoted with a combination of: B, J, K, P, Q, and Z. Any prize over $2,500 on newer tickets is denoted with the letters "C L M" for "claim"; tickets released prior to July 2008 used C L M for amounts over $500. Starting with tickets released at the end of November 2010, tickets no longer have validation codes; an area marked "Scratch to Cash" must be scratched off by the player, revealing a bar code. Concurrent with the removal of validation codes, the Pennsylvania lottery also removed "benday," a random pattern of squiggly lines used as a security feature.