Data:L10a80/PD Presentation

X₈₁₉₂ X_12,3,13,4 X_18,10,19,9 X_20,13,7,14 X_14,19,15,20 X_10,16,11,15 X_16,6,17,5 X₂₇₃₈ X_4,11,5,12 X_6,18,1,17