Data:10 82/PD Presentation

X₁₆₂₇ X_7,16,8,17 X₃₉₄₈ X_15,3,16,2 X_5,15,6,14 X_9,5,10,4 X_11,18,12,19 X_13,20,14,1 X_17,10,18,11 X_19,12,20,13