1B - Spreadsheet

Hi this is my first post D: , I don't understand why i keep getting WA on test 6, precisely on test "R228C494". On the judging system my program outputs "SZ228" (Wrong), but on my pc it outputs "RZ228" (Right). I am using C++ with geany... This is my code: http://pastebin.com/1JsQ67EZ