MD 642 1a 2a 3b 4a 5c 6c 7d 8a 9c 10b 11d 12d 13b 14b 15b 16d 17c 18d 19c 20b 21d 22a 23a 24a 25a 26b 27c 28d 29b 30b 31c 32a 33d 34a 35d 36b 37c 38d 39c 40b