1 2 3 4 5 6 7 8 9 10 11 12 13
x y z group 1.2 3.4 5.6 A 2.3 4.5 6.7 A 3.4 5.6 7.8 A 4.5 6.7 8.9 A 5.6 7.8 2.3 B 6.7 8.9 3.4 B 7.8 2.3 4.5 B 8.9 3.4 5.6 B 2.1 6.5 4.3 C 4.3 2.1 8.7 C 6.5 4.3 6.5 C 8.7 6.5 2.1 C