A A, B, C, D, E, F, G, H, I, J, K, L, M
B 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
C I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII, XIII
D I.A, II.B, III.C, IV.D, V.E, VI.F, VII.G, VIII.H, IX.I, X.J, XI.K, XII.L, XIII.M
E 1.A, 2.B, 3.C, 4.D, 5.E, 6.F, 7.G, 8.H, 9.I, 10.J, 11.K, 12.L, 13.M