Data:10 117/PD Presentation

X₁₆₂₇ X_5,16,6,17 X_13,1,14,20 X_7,15,8,14 X_19,9,20,8 X_3,11,4,10 X_11,5,12,4 X_9,19,10,18 X_17,13,18,12 X_15,2,16,3