y cloths blocks 23.8 a 1 22.4 a 4 24.3 a 5 21.4 a 7 23.8 a 8 20.2 a 10 25.6 b 1 26.7 b 2 22.5 b 4 23.4 b 5 21.7 b 6 21.9 b 9 27.7 c 1 25.8 c 2 26 c 3 24.8 c 6 23.4 c 7 27.1 c 10 23.9 d 2 23.7 d 3 23.9 d 4 25.2 d 8 20.8 d 9 24.9 d 10 20.6 e 3 23.9 e 5 22.3 e 6 18 e 7 19 e 8 19 e 9