M A 19.4 M A 20.6 M A 20 N A 25 N A 24 N B 25.6 N B 26.8 N B 26.2 O A 24.8 O A 26 O A 25.4 O B 27.6 O B 26.4 O B 27 P A 23.1 P A 24.3 P B 25.4 P B 24.5 P B 26.3