A-1-2rr B-3-4rr C-5-6rr D-7-8rr E-9-10rr F-11-12r G-13-14rr H-15-16rr I-17-18rr J-19-20rr K-21-22rr L-23-24rr M-25-26rr N-27-28rr O-29-30rr P-31-32rr Q-33-34rr R-35-36rr S-37-38rr T-39-40rr