Data:9 15/PD Presentation

X₁₄₂₅ X_7,10,8,11 X₃₉₄₈ X_9,3,10,2 X_13,17,14,16 X_5,15,6,14 X_15,7,16,6 X_11,1,12,18 X_17,13,18,12