Data:10 104/PD Presentation

X₆₂₇₁ X_16,4,17,3 X_18,9,19,10 X_14,7,15,8 X_20,13,1,14 X_8,17,9,18 X_10,19,11,20 X_12,6,13,5 X_4,12,5,11 X_2,16,3,15