Data:10 144/PD Presentation

X₁₄₂₅ X_3,10,4,11 X_18,11,19,12 X_5,15,6,14 X_17,7,18,6 X_7,17,8,16 X_15,9,16,8 X_20,13,1,14 X_12,19,13,20 X_9,2,10,3